diff --git a/YACReaderLibrary/db/folder_model.cpp b/YACReaderLibrary/db/folder_model.cpp
index ba7fdcce..ca746621 100644
--- a/YACReaderLibrary/db/folder_model.cpp
+++ b/YACReaderLibrary/db/folder_model.cpp
@@ -53,11 +53,76 @@ void drawMacOSXFinishedFolderIcon()
 
 #define ROOT 1
 
-FolderItem *createRoot()
+struct FolderColumns {
+    int name;
+    int path;
+    int finished;
+    int completed;
+    int id;
+    int parentId;
+    int numChildren;
+    int firstChildHash;
+    int customImage;
+    int type;
+    int added;
+    int updated;
+
+    FolderColumns(QSqlQuery &sqlquery)
+    {
+        auto record = sqlquery.record();
+
+        name = record.indexOf("name");
+        path = record.indexOf("path");
+        finished = record.indexOf("finished");
+        completed = record.indexOf("completed");
+        id = record.indexOf("id");
+        parentId = record.indexOf("parentId");
+        numChildren = record.indexOf("numChildren");
+        firstChildHash = record.indexOf("firstChildHash");
+        customImage = record.indexOf("customImage");
+        type = record.indexOf("type");
+        added = record.indexOf("added");
+        updated = record.indexOf("updated");
+    }
+};
+
+QList<QVariant> folderDataFromQuery(QSqlQuery &query, const FolderColumns &columns)
 {
-    QList<QVariant> rootData;
-    rootData << "root";
-    auto root = new FolderItem(rootData);
+    QList<QVariant> data;
+
+    data << query.value(columns.name);
+    data << query.value(columns.path);
+    data << query.value(columns.finished);
+    data << query.value(columns.completed);
+    data << query.value(columns.numChildren);
+    data << query.value(columns.firstChildHash);
+    data << query.value(columns.customImage);
+    data << query.value(columns.type);
+    data << query.value(columns.added);
+    data << query.value(columns.updated);
+
+    return data;
+}
+
+// TODO: load from DB, type is pretty much needed
+FolderItem *createRoot(QSqlDatabase &db)
+{
+    QList<QVariant> data;
+
+    QSqlQuery selectQuery(db);
+    selectQuery.prepare("SELECT * FROM folder WHERE id = 1");
+    selectQuery.exec();
+
+    auto columns = FolderColumns(selectQuery);
+
+    if (!selectQuery.next()) {
+        return nullptr;
+    }
+
+    data = folderDataFromQuery(selectQuery, columns);
+    data[0] = "root";
+
+    auto root = new FolderItem(data);
     root->id = ROOT;
     root->parentItem = nullptr;
 
@@ -83,7 +148,7 @@ int FolderModel::columnCount(const QModelIndex &parent) const
         if (rootItem == nullptr) {
             return 0;
         }
-        return rootItem->columnCount();
+        return 1;
     }
 }
 
@@ -454,7 +519,7 @@ FolderModel::ModelData FolderModel::createModelData(const QString &path) const
         QSqlDatabase db = DataBaseManagement::loadDatabase(path);
         QSqlQuery selectQuery("select * from folder where id <> 1 order by parentId,name", db);
 
-        auto root = createRoot();
+        auto root = createRoot(db);
         modelData = createModelData(selectQuery, root);
 
         connectionName = db.connectionName();
@@ -471,40 +536,14 @@ FolderModel::ModelData FolderModel::createModelData(QSqlQuery &sqlquery, FolderI
     // add parent to the lookup
     itemsLookup.insert(parent->id, parent);
 
-    QSqlRecord record = sqlquery.record();
-
-    int name = record.indexOf("name");
-    int path = record.indexOf("path");
-    int finished = record.indexOf("finished");
-    int completed = record.indexOf("completed");
-    int id = record.indexOf("id");
-    int parentId = record.indexOf("parentId");
-    int numChildren = record.indexOf("numChildren");
-    int firstChildHash = record.indexOf("firstChildHash");
-    int customImage = record.indexOf("customImage");
-    int type = record.indexOf("type");
-    int added = record.indexOf("added");
-    int updated = record.indexOf("updated");
+    auto columns = FolderColumns(sqlquery);
 
     while (sqlquery.next()) {
-        QList<QVariant> data;
+        auto item = new FolderItem(folderDataFromQuery(sqlquery, columns));
 
-        data << sqlquery.value(name);
-        data << sqlquery.value(path);
-        data << sqlquery.value(finished);
-        data << sqlquery.value(completed);
-        data << sqlquery.value(numChildren);
-        data << sqlquery.value(firstChildHash);
-        data << sqlquery.value(customImage);
-        data << sqlquery.value(type);
-        data << sqlquery.value(added);
-        data << sqlquery.value(updated);
-
-        auto item = new FolderItem(data);
-
-        item->id = sqlquery.value(id).toULongLong();
+        item->id = sqlquery.value(columns.id).toULongLong();
         // la inserci�n de hijos se hace de forma ordenada
-        FolderItem *parent = itemsLookup.value(sqlquery.value(parentId).toULongLong());
+        FolderItem *parent = itemsLookup.value(sqlquery.value(columns.parentId).toULongLong());
         parent->appendChild(item);
         // se a�ade el item al map, de forma que se pueda encontrar como padre en siguientes iteraciones
         itemsLookup.insert(item->id, item);
@@ -605,6 +644,35 @@ void FolderModel::updateFolderType(const QModelIndexList &list, YACReader::FileT
     emit dataChanged(index(list.first().row(), FolderModel::Name), index(list.last().row(), FolderModel::Updated));
 }
 
+void FolderModel::updateTreeType(YACReader::FileType type)
+{
+    QString connectionName = "";
+    {
+        QSqlDatabase db = DataBaseManagement::loadDatabase(_databasePath);
+        db.transaction();
+
+        auto item = rootItem;
+
+        std::function<void(FolderItem *, YACReader::FileType)> setType;
+        setType = [&setType](FolderItem *item, YACReader::FileType type) -> void {
+            item->setData(FolderModel::Type, QVariant::fromValue(type));
+
+            for (auto child : item->children()) {
+                setType(child, type);
+            }
+        };
+
+        setType(item, type);
+
+        if (!isSubfolder) {
+            DBHelper::updateDBType(db, type);
+        }
+        db.commit();
+        connectionName = db.connectionName();
+    }
+    QSqlDatabase::removeDatabase(connectionName);
+}
+
 QStringList FolderModel::getSubfoldersNames(const QModelIndex &mi)
 {
     QStringList result;
diff --git a/YACReaderLibrary/db/folder_model.h b/YACReaderLibrary/db/folder_model.h
index ee44d57c..a0f9801b 100644
--- a/YACReaderLibrary/db/folder_model.h
+++ b/YACReaderLibrary/db/folder_model.h
@@ -69,6 +69,7 @@ public:
     void updateFolderCompletedStatus(const QModelIndexList &list, bool status);
     void updateFolderFinishedStatus(const QModelIndexList &list, bool status);
     void updateFolderType(const QModelIndexList &list, YACReader::FileType type);
+    void updateTreeType(YACReader::FileType type);
 
     QStringList getSubfoldersNames(const QModelIndex &mi);
     FolderModel *getSubfoldersModel(const QModelIndex &mi); // it creates a model that contains just the direct subfolders
@@ -112,7 +113,6 @@ public:
     };
 
     bool isSubfolder;
-
 public slots:
     void deleteFolder(const QModelIndex &mi);
     void updateFolderChildrenInfo(qulonglong folderId);
diff --git a/YACReaderLibrary/db_helper.cpp b/YACReaderLibrary/db_helper.cpp
index 32e53129..04c1add9 100644
--- a/YACReaderLibrary/db_helper.cpp
+++ b/YACReaderLibrary/db_helper.cpp
@@ -1668,6 +1668,21 @@ void DBHelper::updateFolderTreeType(qulonglong id, QSqlDatabase &db, YACReader::
     }
 }
 
+void DBHelper::updateDBType(QSqlDatabase &db, YACReader::FileType type)
+{
+    QSqlQuery updateFolderQuery(db);
+    updateFolderQuery.prepare("UPDATE folder "
+                              "SET type = :type");
+    updateFolderQuery.bindValue(":type", static_cast<int>(type));
+    updateFolderQuery.exec();
+
+    QSqlQuery updateComicInfo(db);
+    updateComicInfo.prepare("UPDATE comic_info "
+                            "SET type = :type");
+    updateComicInfo.bindValue(":type", static_cast<int>(type));
+    updateComicInfo.exec();
+}
+
 Folder DBHelper::loadFolder(qulonglong id, QSqlDatabase &db)
 {
     QSqlQuery query(db);
diff --git a/YACReaderLibrary/db_helper.h b/YACReaderLibrary/db_helper.h
index a843572c..699bc59a 100644
--- a/YACReaderLibrary/db_helper.h
+++ b/YACReaderLibrary/db_helper.h
@@ -91,6 +91,7 @@ public:
     static QList<Label> getLabels(qulonglong libraryId);
 
     static void updateFolderTreeType(qulonglong id, QSqlDatabase &db, YACReader::FileType type);
+    static void updateDBType(QSqlDatabase &db, YACReader::FileType type);
 
     // load
     static Folder loadFolder(qulonglong id, QSqlDatabase &db);
diff --git a/YACReaderLibrary/library_creator.cpp b/YACReaderLibrary/library_creator.cpp
index 953cd0c9..ce9a5271 100644
--- a/YACReaderLibrary/library_creator.cpp
+++ b/YACReaderLibrary/library_creator.cpp
@@ -1,5 +1,4 @@
 #include "library_creator.h"
-#include "custom_widgets.h"
 
 #include <QMutex>
 #include <QDebug>
@@ -25,6 +24,25 @@
 using namespace std;
 using namespace YACReader;
 
+Folder rootFolder(QSqlDatabase &db)
+{
+    QSqlQuery selectQuery(db);
+    selectQuery.prepare("SELECT * FROM folder WHERE id = 1");
+    selectQuery.exec();
+
+    auto root = Folder(1, 1, "root", "/");
+
+    if (!selectQuery.next()) {
+
+        root.type = YACReader::FileType::Comic;
+        return root;
+    }
+
+    root.type = selectQuery.value("type").value<YACReader::FileType>();
+
+    return root;
+    }
+
 //--------------------------------------------------------------------------------
 LibraryCreator::LibraryCreator(QSettings *settings)
     : creation(false), partialUpdate(false), settings(settings)
@@ -54,7 +72,6 @@ void LibraryCreator::updateFolder(const QString &source, const QString &target,
     folderDestinationModelIndex = dest;
 
     _currentPathFolders.clear();
-    _currentPathFolders.append(Folder::rootFolder());
 
     QString relativeFolderPath = sourceFolder;
     relativeFolderPath = relativeFolderPath.remove(QDir::cleanPath(source));
@@ -83,6 +100,8 @@ void LibraryCreator::updateFolder(const QString &source, const QString &target,
             return;
         }
 
+        _currentPathFolders.append(rootFolder(db));
+
         foreach (QString folderName, folders) {
             if (folderName.isEmpty()) {
                 break;
@@ -139,7 +158,6 @@ void LibraryCreator::run()
     if (_mode == CREATOR) {
         QLOG_INFO() << "Starting to create new library ( " << _source << "," << _target << ")";
         _currentPathFolders.clear();
-        _currentPathFolders.append(Folder::rootFolder());
         // se crean los directorios .yacreaderlibrary y .yacreaderlibrary/covers
         QDir dir;
         dir.mkpath(_target + "/covers");
@@ -156,6 +174,8 @@ void LibraryCreator::run()
                 return;
             }
 
+            _currentPathFolders.append(rootFolder(_database));
+
             /*QSqlQuery pragma("PRAGMA foreign_keys = ON",_database);*/
             _database.transaction();
             // se crea la librería
@@ -173,7 +193,6 @@ void LibraryCreator::run()
         QLOG_INFO() << "Starting to update folder" << _sourceFolder << "in library ( " << _source << "," << _target << ")";
         if (!partialUpdate) {
             _currentPathFolders.clear();
-            _currentPathFolders.append(Folder::rootFolder());
             QLOG_DEBUG() << "update whole library";
         }
         {
@@ -197,6 +216,9 @@ void LibraryCreator::run()
                 creation = false;
                 return;
             }
+
+            _currentPathFolders.append(rootFolder(_database));
+
             QSqlQuery pragma("PRAGMA foreign_keys = ON", _database);
             pragma.exec();
             _database.transaction();
diff --git a/YACReaderLibrary/library_window.cpp b/YACReaderLibrary/library_window.cpp
index a6937e9e..86c6112c 100644
--- a/YACReaderLibrary/library_window.cpp
+++ b/YACReaderLibrary/library_window.cpp
@@ -541,6 +541,75 @@ void LibraryWindow::createMenus()
     selectedLibrary->addAction(actions.removeLibraryAction);
     YACReader::addSperator(selectedLibrary);
 
+    auto setNormalAction = new QAction();
+    setNormalAction->setText(tr("comic"));
+
+    auto setMangaAction = new QAction();
+    setMangaAction->setText(tr("manga"));
+
+    auto setWesternMangaAction = new QAction();
+    setWesternMangaAction->setText(tr("western manga (left to right)"));
+
+    auto setWebComicAction = new QAction();
+    setWebComicAction->setText(tr("web comic"));
+
+    auto setYonkomaAction = new QAction();
+    setYonkomaAction->setText(tr("4koma (top to botom)"));
+
+    setNormalAction->setCheckable(true);
+    setMangaAction->setCheckable(true);
+    setWesternMangaAction->setCheckable(true);
+    setWebComicAction->setCheckable(true);
+    setYonkomaAction->setCheckable(true);
+
+    auto setupActions = [=](FileType type) {
+        setNormalAction->setChecked(false);
+        setMangaAction->setChecked(false);
+        setWesternMangaAction->setChecked(false);
+        setWebComicAction->setChecked(false);
+        setYonkomaAction->setChecked(false);
+
+        switch (type) {
+        case YACReader::FileType::Comic:
+            setNormalAction->setChecked(true);
+            break;
+        case YACReader::FileType::Manga:
+            setMangaAction->setChecked(true);
+            break;
+        case YACReader::FileType::WesternManga:
+            setWesternMangaAction->setChecked(true);
+            break;
+        case YACReader::FileType::WebComic:
+            setWebComicAction->setChecked(true);
+            break;
+        case YACReader::FileType::Yonkoma:
+            setYonkomaAction->setChecked(true);
+            break;
+        }
+    };
+
+    connect(setNormalAction, &QAction::triggered, this, [=]() { setCurrentLibraryAs(FileType::Comic); });
+    connect(setMangaAction, &QAction::triggered, this, [=]() { setCurrentLibraryAs(FileType::Manga); });
+    connect(setWesternMangaAction, &QAction::triggered, this, [=]() { setCurrentLibraryAs(FileType::WesternManga); });
+    connect(setWebComicAction, &QAction::triggered, this, [=]() { setCurrentLibraryAs(FileType::WebComic); });
+    connect(setYonkomaAction, &QAction::triggered, this, [=]() { setCurrentLibraryAs(FileType::Yonkoma); });
+
+    auto typeMenu = new QMenu(tr("Set type"), selectedLibrary);
+
+    connect(typeMenu, &QMenu::aboutToShow, this, [=]() {
+        auto rootIndex = foldersModel->index(0, 0);
+        auto folder = foldersModel->getFolder(rootIndex);
+        setupActions(folder.type);
+    });
+
+    selectedLibrary->addAction(typeMenu->menuAction());
+    YACReader::addSperator(selectedLibrary);
+    typeMenu->addAction(setNormalAction);
+    typeMenu->addAction(setMangaAction);
+    typeMenu->addAction(setWesternMangaAction);
+    typeMenu->addAction(setWebComicAction);
+    typeMenu->addAction(setYonkomaAction);
+
     selectedLibrary->addAction(actions.rescanLibraryForXMLInfoAction);
     YACReader::addSperator(selectedLibrary);
 
@@ -565,6 +634,9 @@ void LibraryWindow::createMenus()
     libraryMenu->addAction(removeLibraryAction);
     libraryMenu->addSeparator();
 
+    libraryMenu->addAction(typeMenu);
+    libraryMenu->addSeparator();
+
     libraryMenu->addAction(rescanLibraryForXMLInfoAction);
     libraryMenu->addSeparator();
 
@@ -727,6 +799,11 @@ void LibraryWindow::showErrorUpgradingLibrary(const QString &path)
     QMessageBox::critical(this, tr("Upgrade failed"), tr("There were errors during library upgrade in: ") + path + "/library.ydb");
 }
 
+void LibraryWindow::setCurrentLibraryAs(FileType fileType)
+{
+    foldersModel->updateTreeType(fileType);
+}
+
 void LibraryWindow::loadLibrary(const QString &name)
 {
     if (!libraries.isEmpty()) // si hay bibliotecas...
diff --git a/YACReaderLibrary/library_window.h b/YACReaderLibrary/library_window.h
index c4b35db3..c6255649 100644
--- a/YACReaderLibrary/library_window.h
+++ b/YACReaderLibrary/library_window.h
@@ -333,6 +333,7 @@ public slots:
     void saveSelectedCoversTo();
     void checkMaxNumLibraries();
     void showErrorUpgradingLibrary(const QString &path);
+    void setCurrentLibraryAs(FileType fileType);
 
     void prepareToCloseApp();
     void closeApp();
diff --git a/common/folder.cpp b/common/folder.cpp
index 311058d0..685f2e85 100644
--- a/common/folder.cpp
+++ b/common/folder.cpp
@@ -71,13 +71,6 @@ Folder &Folder::operator=(const Folder &other)
     return *this;
 }
 
-Folder Folder::rootFolder()
-{
-    auto root = Folder(1, 1, "root", "/");
-    root.type = YACReader::FileType::Comic; // TODO: make this configurable by the user so it can set a default type for a library
-    return root;
-}
-
 Folder::Folder(const QString &folderName, const QString &folderPath)
     : knownParent(false),
       knownId(false),
diff --git a/common/folder.h b/common/folder.h
index ab25ee03..942ceec4 100644
--- a/common/folder.h
+++ b/common/folder.h
@@ -41,8 +41,6 @@ public:
     Folder(const Folder &folder);
     Folder &operator=(const Folder &other);
 
-    static Folder rootFolder();
-
     inline void setId(qulonglong sid)
     {
         id = sid;