diff --git a/src/org/geometerplus/android/fbreader/libraryService/BookCollectionShadow.java b/src/org/geometerplus/android/fbreader/libraryService/BookCollectionShadow.java
index 367cc9a46..d470e9dc8 100644
--- a/src/org/geometerplus/android/fbreader/libraryService/BookCollectionShadow.java
+++ b/src/org/geometerplus/android/fbreader/libraryService/BookCollectionShadow.java
@@ -50,6 +50,28 @@ public class BookCollectionShadow implements IBookCollection, ServiceConnection
 		myContext.unbindService(this);
 	}
 
+	public synchronized int size() {
+		if (myInterface == null) {
+			return 0;
+		}
+		try {
+			return myInterface.size();
+		} catch (RemoteException e) {
+			return 0;
+		}
+	}
+
+	public synchronized Book getRecentBook(int index) {
+		if (myInterface == null) {
+			return null;
+		}
+		try {
+			return SerializerUtil.deserializeBook(myInterface.recentBook(index));
+		} catch (RemoteException e) {
+			return null;
+		}
+	}
+
 	public synchronized Book getBookById(long id) {
 		if (myInterface == null) {
 			return null;
@@ -72,7 +94,7 @@ public class BookCollectionShadow implements IBookCollection, ServiceConnection
 		}
 	}
 
-	public void saveBookmark(Bookmark bookmark) {
+	public synchronized void saveBookmark(Bookmark bookmark) {
 		if (myInterface != null) {
 			try {
 				bookmark.update(SerializerUtil.deserializeBookmark(
@@ -83,7 +105,7 @@ public class BookCollectionShadow implements IBookCollection, ServiceConnection
 		}
 	}
 
-	public void deleteBookmark(Bookmark bookmark) {
+	public synchronized void deleteBookmark(Bookmark bookmark) {
 		if (myInterface != null) {
 			try {
 				myInterface.deleteBookmark(SerializerUtil.serialize(bookmark));
diff --git a/src/org/geometerplus/android/fbreader/libraryService/LibraryInterface.aidl b/src/org/geometerplus/android/fbreader/libraryService/LibraryInterface.aidl
index 4ecadc158..2ce213da6 100644
--- a/src/org/geometerplus/android/fbreader/libraryService/LibraryInterface.aidl
+++ b/src/org/geometerplus/android/fbreader/libraryService/LibraryInterface.aidl
@@ -7,7 +7,9 @@ package org.geometerplus.android.fbreader.libraryService;
 import java.util.List;
 
 interface LibraryInterface {
+	int size();
 	String bookById(in long id);
+	String recentBook(in int index);
 
 	List<String> allBookmarks();
 	String saveBookmark(in String bookmark);
diff --git a/src/org/geometerplus/android/fbreader/libraryService/LibraryService.java b/src/org/geometerplus/android/fbreader/libraryService/LibraryService.java
index 4fb8651f9..964736069 100644
--- a/src/org/geometerplus/android/fbreader/libraryService/LibraryService.java
+++ b/src/org/geometerplus/android/fbreader/libraryService/LibraryService.java
@@ -69,6 +69,14 @@ public class LibraryService extends Service {
 			myCollection.startBuild();
 		}
 
+		public int size() {
+			return myCollection.size();
+		}
+
+		public String recentBook(int index) {
+			return SerializerUtil.serialize(myCollection.getRecentBook(index));
+		}
+
 		public String bookById(long id) {
 			return SerializerUtil.serialize(myCollection.getBookById(id));
 		}
diff --git a/src/org/geometerplus/fbreader/library/IBookCollection.java b/src/org/geometerplus/fbreader/library/IBookCollection.java
index a7dca050c..32ff31260 100644
--- a/src/org/geometerplus/fbreader/library/IBookCollection.java
+++ b/src/org/geometerplus/fbreader/library/IBookCollection.java
@@ -22,7 +22,9 @@ package org.geometerplus.fbreader.library;
 import java.util.List;
 
 public interface IBookCollection {
+	int size();
 	Book getBookById(long id);
+	Book getRecentBook(int index);
 
 	List<Bookmark> allBookmarks();
 	void saveBookmark(Bookmark bookmark);