diff --git a/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryEvent.kt b/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryEvent.kt
index 432712e8..5c800cab 100644
--- a/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryEvent.kt
+++ b/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryEvent.kt
@@ -8,6 +8,7 @@ package ua.acclorite.book_story.presentation.library
 
 import androidx.compose.runtime.Immutable
 import ua.acclorite.book_story.domain.model.library.Category
+import ua.acclorite.book_story.presentation.library.model.SelectableBook
 
 @Immutable
 sealed class LibraryEvent {
@@ -35,6 +36,10 @@ sealed class LibraryEvent {
         val select: Boolean? = null
     ) : LibraryEvent()
 
+    data class OnSelectBooks(
+        val books: List<SelectableBook>
+    ) : LibraryEvent()
+
     data object OnShowMoveDialog : LibraryEvent()
 
     data class OnActionMoveDialog(
diff --git a/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryModel.kt b/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryModel.kt
index 44ae6c10..1a1ecf88 100644
--- a/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryModel.kt
+++ b/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryModel.kt
@@ -191,6 +191,25 @@ class LibraryModel @Inject constructor(
                     }
                 }
 
+                is LibraryEvent.OnSelectBooks -> {
+                    withContext(Dispatchers.Default) {
+                        val editedList = _state.value.books.map { book ->
+                            if (event.books.any { book.data.id == it.data.id }) book.copy(
+                                selected = if (event.books.size > 1) true else !book.selected
+                            )
+                            else book
+                        }
+
+                        _state.update {
+                            it.copy(
+                                books = editedList,
+                                selectedItemsCount = editedList.filter { book -> book.selected }.size,
+                                hasSelectedItems = editedList.any { book -> book.selected }
+                            )
+                        }
+                    }
+                }
+
                 is LibraryEvent.OnShowMoveDialog -> {
                     _state.update {
                         it.copy(
diff --git a/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryScreen.kt b/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryScreen.kt
index c5c3d18b..6e1fb218 100644
--- a/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryScreen.kt
+++ b/app/src/main/java/ua/acclorite/book_story/presentation/library/LibraryScreen.kt
@@ -71,7 +71,6 @@ object LibraryScreen : Screen, Parcelable {
                 state.value.books.any { book ->
                     book.data.categories.none { category -> category in categoryIds }
                 } || categories.isEmpty() || settings.libraryShowDefaultTab.lastValue
-
             }
         }
 
@@ -142,6 +141,7 @@ object LibraryScreen : Screen, Parcelable {
             requestFocus = screenModel::onEvent,
             searchQueryChange = screenModel::onEvent,
             search = screenModel::onEvent,
+            selectBooks = screenModel::onEvent,
             clearSelectedBooks = screenModel::onEvent,
             showMoveDialog = screenModel::onEvent,
             actionMoveDialog = screenModel::onEvent,
diff --git a/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryContent.kt b/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryContent.kt
index 1eb00027..13548dfe 100644
--- a/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryContent.kt
+++ b/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryContent.kt
@@ -59,6 +59,7 @@ fun LibraryContent(
     requestFocus: (LibraryEvent.OnRequestFocus) -> Unit,
     searchQueryChange: (LibraryEvent.OnSearchQueryChange) -> Unit,
     search: (LibraryEvent.OnSearch) -> Unit,
+    selectBooks: (LibraryEvent.OnSelectBooks) -> Unit,
     clearSelectedBooks: (LibraryEvent.OnClearSelectedBooks) -> Unit,
     showMoveDialog: (LibraryEvent.OnShowMoveDialog) -> Unit,
     showDeleteDialog: (LibraryEvent.OnShowDeleteDialog) -> Unit,
@@ -126,6 +127,7 @@ fun LibraryContent(
         searchQueryChange = searchQueryChange,
         search = search,
         selectBook = selectBook,
+        selectBooks = selectBooks,
         clearSelectedBooks = clearSelectedBooks,
         showMoveDialog = showMoveDialog,
         showDeleteDialog = showDeleteDialog,
diff --git a/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryScaffold.kt b/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryScaffold.kt
index 63824699..0aeab026 100644
--- a/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryScaffold.kt
+++ b/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryScaffold.kt
@@ -57,6 +57,7 @@ fun LibraryScaffold(
     requestFocus: (LibraryEvent.OnRequestFocus) -> Unit,
     searchQueryChange: (LibraryEvent.OnSearchQueryChange) -> Unit,
     search: (LibraryEvent.OnSearch) -> Unit,
+    selectBooks: (LibraryEvent.OnSelectBooks) -> Unit,
     clearSelectedBooks: (LibraryEvent.OnClearSelectedBooks) -> Unit,
     showMoveDialog: (LibraryEvent.OnShowMoveDialog) -> Unit,
     showDeleteDialog: (LibraryEvent.OnShowDeleteDialog) -> Unit,
@@ -90,6 +91,7 @@ fun LibraryScaffold(
                 requestFocus = requestFocus,
                 searchQueryChange = searchQueryChange,
                 search = search,
+                selectBooks = selectBooks,
                 clearSelectedBooks = clearSelectedBooks,
                 showMoveDialog = showMoveDialog,
                 showDeleteDialog = showDeleteDialog,
diff --git a/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryTabs.kt b/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryTabs.kt
index 9ea5a29b..ee8b679d 100644
--- a/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryTabs.kt
+++ b/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryTabs.kt
@@ -30,11 +30,12 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 import kotlinx.coroutines.launch
 import ua.acclorite.book_story.domain.model.library.Category
+import ua.acclorite.book_story.presentation.library.model.SelectableBook
 import ua.acclorite.book_story.ui.common.components.common.StyledText
 
 @Composable
 fun LibraryTabs(
-    categoriesWithBookCount: List<Pair<Category, Int>>,
+    categoriesWithBooks: List<Pair<Category, List<SelectableBook>>>,
     pagerState: PagerState,
     itemCountBackgroundColor: Color,
     showBookCount: Boolean
@@ -70,7 +71,7 @@ fun LibraryTabs(
                 }
             }
         ) {
-            categoriesWithBookCount.forEachIndexed { index, tabItem ->
+            categoriesWithBooks.forEachIndexed { index, tabItem ->
                 Tab(
                     selected = pagerState.currentPage == index,
                     onClick = {
@@ -91,7 +92,7 @@ fun LibraryTabs(
                             if (showBookCount) {
                                 Spacer(modifier = Modifier.width(6.dp))
                                 StyledText(
-                                    text = tabItem.second.toString(),
+                                    text = tabItem.second.size.toString(),
                                     modifier = Modifier
                                         .background(
                                             itemCountBackgroundColor,
diff --git a/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryTopBar.kt b/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryTopBar.kt
index 79ee45c8..70bea7df 100644
--- a/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryTopBar.kt
+++ b/app/src/main/java/ua/acclorite/book_story/ui/library/LibraryTopBar.kt
@@ -23,6 +23,7 @@ import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.filled.Clear
 import androidx.compose.material.icons.filled.FilterList
 import androidx.compose.material.icons.filled.Search
+import androidx.compose.material.icons.filled.SelectAll
 import androidx.compose.material.icons.outlined.Delete
 import androidx.compose.material.icons.outlined.MoveUp
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -72,13 +73,14 @@ fun LibraryTopBar(
     requestFocus: (LibraryEvent.OnRequestFocus) -> Unit,
     searchQueryChange: (LibraryEvent.OnSearchQueryChange) -> Unit,
     search: (LibraryEvent.OnSearch) -> Unit,
+    selectBooks: (LibraryEvent.OnSelectBooks) -> Unit,
     clearSelectedBooks: (LibraryEvent.OnClearSelectedBooks) -> Unit,
     showMoveDialog: (LibraryEvent.OnShowMoveDialog) -> Unit,
     showDeleteDialog: (LibraryEvent.OnShowDeleteDialog) -> Unit,
     showFilterBottomSheet: (LibraryEvent.OnShowFilterBottomSheet) -> Unit
 ) {
     val defaultCategory = stringResource(id = R.string.default_tab)
-    val categoriesWithBookCount = remember(
+    val categoriesWithBooks = remember(
         books,
         categories,
         showDefaultCategory,
@@ -86,7 +88,7 @@ fun LibraryTopBar(
     ) {
         derivedStateOf {
             categories.filterNot { it.id == -1 }.map { category ->
-                category to books.count { it.data.categories.any { it == category.id } }
+                category to books.filter { it.data.categories.any { it == category.id } }
             }.toMutableList().apply {
                 if (showDefaultCategory) {
                     val categoryIds = categories.map { it.id }.toSet()
@@ -95,7 +97,7 @@ fun LibraryTopBar(
                         Category(
                             id = -1,
                             title = defaultCategory
-                        ) to books.count { book ->
+                        ) to books.filter { book ->
                             book.data.categories.none { category -> category in categoryIds }
                         }
                     )
@@ -103,9 +105,9 @@ fun LibraryTopBar(
             }.toList()
         }
     }
-    val currentCategory = remember(pagerState.currentPage, categoriesWithBookCount) {
+    val currentCategory = remember(pagerState.currentPage, categoriesWithBooks) {
         derivedStateOf {
-            categoriesWithBookCount.value[pagerState.currentPage]
+            categoriesWithBooks.value[pagerState.currentPage]
         }
     }
 
@@ -226,6 +228,17 @@ fun LibraryTopBar(
                     )
                 },
                 contentActions = {
+                    IconButton(
+                        icon = Icons.Default.SelectAll,
+                        contentDescription = R.string.select_all_books_content_desc,
+                        disableOnClick = false,
+                    ) {
+                        selectBooks(
+                            LibraryEvent.OnSelectBooks(
+                                books = currentCategory.value.second
+                            )
+                        )
+                    }
                     IconButton(
                         icon = Icons.Outlined.MoveUp,
                         contentDescription = R.string.move_books_content_desc,
@@ -252,7 +265,7 @@ fun LibraryTopBar(
                 exit = shrinkVertically()
             ) {
                 LibraryTabs(
-                    categoriesWithBookCount = categoriesWithBookCount.value,
+                    categoriesWithBooks = categoriesWithBooks.value,
                     pagerState = pagerState,
                     itemCountBackgroundColor = animatedItemCountBackgroundColor.value,
                     showBookCount = showBookCount
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index ea16e25b..9e1c29ae 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -475,6 +475,7 @@
     <string name="clear_selected_items_content_desc">Очистити обрані предмети</string>
     <string name="add_files_content_desc">Додати файли</string>
     <string name="select_all_files_content_desc">Вибрати всі файли</string>
+    <string name="select_all_books_content_desc">Вибрати всі книги</string>
     <string name="exit_search_content_desc">Вийти з пошуку</string>
     <string name="delete_whole_history_content_desc">Видалити всю історію</string>
     <string name="move_books_content_desc">Перемістити обрані книги</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d431b9e5..70915486 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -611,6 +611,7 @@
     <string name="clear_selected_items_content_desc">Clear selected items</string>
     <string name="add_files_content_desc">Add files</string>
     <string name="select_all_files_content_desc">Select all files</string>
+    <string name="select_all_books_content_desc">Select all books</string>
     <string name="exit_search_content_desc">Exit search</string>
     <string name="delete_whole_history_content_desc">Delete whole history</string>
     <string name="move_books_content_desc">Move selected books</string>