diff --git a/src/contentmanager.cpp b/src/contentmanager.cpp
index 328eac5..d79d4b7 100644
--- a/src/contentmanager.cpp
+++ b/src/contentmanager.cpp
@@ -313,12 +313,32 @@ void ContentManager::setSearch(const QString &search)
     emit(booksChanged());
 }
 
-QStringList ContentManager::getBookIds() {
+QStringList ContentManager::getBookIds()
+{
+    kiwix::Filter filter;
+    std::vector<std::string> tags;
+    if (m_categoryFilter != "all" && m_categoryFilter != "other") {
+        tags.push_back(m_categoryFilter.toStdString());
+        filter.acceptTags(tags);
+    }
+    if (m_categoryFilter == "other") {
+        auto categoryList = KiwixApp::instance()->getMainWindow()->getSideContentManager()->getCategoryList();
+        for (auto& category: categoryList) {
+            if (category != "Other") {
+                tags.push_back(category.toLower().toStdString());
+            }
+        }
+        filter.rejectTags(tags);
+    }
+    filter.query(m_searchQuery.toStdString());
+    
     if (m_local) {
-        return mp_library->listBookIds(m_searchQuery, m_categoryFilter);
+        filter.local(true);
+        filter.valid(true);
+        return mp_library->listBookIds(filter);
     } else {
-        auto bookIds = m_remoteLibrary.listBooksIds(kiwix::REMOTE, kiwix::UNSORTED,
-                                                    m_searchQuery.toStdString());
+        filter.remote(true);
+        auto bookIds = m_remoteLibrary.filter(filter);
         QStringList list;
         for(auto& bookId:bookIds) {
             list.append(QString::fromStdString(bookId));
diff --git a/src/contentmanagerside.cpp b/src/contentmanagerside.cpp
index 1d0d015..cf92dff 100644
--- a/src/contentmanagerside.cpp
+++ b/src/contentmanagerside.cpp
@@ -224,6 +224,7 @@ ContentManagerSide::ContentManagerSide(QWidget *parent) :
     })
     {
         auto c = QString(category);
+        m_categoryList.append(c);
         auto item = new KListWidgetItem(c);
         mp_categorySelector->addItem(item);
         if (c ==  "All")
diff --git a/src/contentmanagerside.h b/src/contentmanagerside.h
index 9cfd911..5ffa2f0 100644
--- a/src/contentmanagerside.h
+++ b/src/contentmanagerside.h
@@ -19,6 +19,7 @@ public:
     ~ContentManagerSide();
 
     void setContentManager(ContentManager* contentManager);
+    QStringList getCategoryList() { return m_categoryList;};
 
 private:
     Ui::contentmanagerside *mp_ui;
@@ -27,6 +28,7 @@ private:
     QListWidget* mp_languageSelector;
     QCheckBox* mp_categoryButton;
     QListWidget* mp_categorySelector;
+    QStringList m_categoryList;
 };
 
 #endif // CONTENTMANAGERSIDE_H
diff --git a/src/library.cpp b/src/library.cpp
index f583c35..5ac4fe5 100644
--- a/src/library.cpp
+++ b/src/library.cpp
@@ -2,6 +2,7 @@
 #include "kiwixapp.h"
 
 #include <kiwix/manager.h>
+#include "kiwixapp.h"
 
 #include <QtDebug>
 
@@ -90,20 +91,11 @@ QStringList Library::getBookIds()
     return list;
 }
 
-QStringList Library::listBookIds(const QString &query, const QString &categoryFilter)
+QStringList Library::listBookIds(const kiwix::Filter& filter)
 {
     QStringList list;
-    std::vector<std::string> tags;
-    if (categoryFilter != "all") {
-        tags.push_back(categoryFilter.toStdString());
-    }
-    for(auto& id: m_library.listBooksIds(kiwix::VALID|kiwix::LOCAL,
-                                         kiwix::UNSORTED,
-                                         query.toStdString(),
-                                         "",
-                                         "",
-                                         "",
-                                         tags)) {
+    auto bookIds = m_library.filter(filter);
+    for(auto& id: bookIds) {
         list.append(QString::fromStdString(id));
     }
     return list;
diff --git a/src/library.h b/src/library.h
index 1fbc911..4910240 100644
--- a/src/library.h
+++ b/src/library.h
@@ -29,7 +29,7 @@ public:
     QString openBookFromPath(const QString& zimPath);
     std::shared_ptr<kiwix::Reader> getReader(const QString& zimId);
     QStringList getBookIds();
-    QStringList listBookIds(const QString& query, const QString &categoryFilter);
+    QStringList listBookIds(const kiwix::Filter& filter);
     const std::vector<kiwix::Bookmark>& getBookmarks() { return m_library.getBookmarks(); }
     void addBookToLibrary(kiwix::Book& book);
     void removeBookFromLibraryById(const QString& id);