diff --git a/app/build.gradle b/app/build.gradle
index d76f866..edb3a2b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -9,8 +9,8 @@ android {
         applicationId "org.literacyapp"
         minSdkVersion 21
         targetSdkVersion 23
-        versionCode 1005002
-        versionName "1.5.2"
+        versionCode 1005003
+        versionName "1.5.3"
 
 //        jackOptions {
 //            enabled true
diff --git a/app/src/main/java/org/literacyapp/MainActivity.java b/app/src/main/java/org/literacyapp/MainActivity.java
index 7c02d3a..a90654c 100644
--- a/app/src/main/java/org/literacyapp/MainActivity.java
+++ b/app/src/main/java/org/literacyapp/MainActivity.java
@@ -11,12 +11,15 @@
 import android.util.Log;
 import android.widget.Toast;
 
+import org.literacyapp.contentprovider.ContentProvider;
 import org.literacyapp.contentprovider.dao.LetterDao;
+import org.literacyapp.contentprovider.model.content.Letter;
 import org.literacyapp.service.synchronization.ReadDeviceAsyncTask;
 import org.literacyapp.util.ConnectivityHelper;
 import org.literacyapp.util.RootHelper;
 
 import java.io.IOException;
+import java.util.List;
 
 public class MainActivity extends AppCompatActivity {
 
@@ -60,9 +63,9 @@ protected void onStart() {
         LiteracyApplication literacyApplication = (LiteracyApplication) getApplication();
         letterDao = literacyApplication.getDaoSession().getLetterDao();
 
-//        ContentProvider.initializeDb(this);
-//        List<Letter> letters = ContentProvider.getAvailableLetters();
-//        Log.i(getClass().getName(), "letters: " + letters);
+        ContentProvider.initializeDb(this);
+        List<Letter> letters = ContentProvider.getUnlockedLetters();
+        Log.i(getClass().getName(), "letters: " + letters);
 
         if (letterDao.loadAll().isEmpty()) {
             // Download content
diff --git a/app/src/main/java/org/literacyapp/logic/CurriculumHelper.java b/app/src/main/java/org/literacyapp/logic/CurriculumHelper.java
index e4e6d2c..6bcd0bf 100644
--- a/app/src/main/java/org/literacyapp/logic/CurriculumHelper.java
+++ b/app/src/main/java/org/literacyapp/logic/CurriculumHelper.java
@@ -38,7 +38,7 @@ public CurriculumHelper(Context context) {
      * default list.
      */
     public List<Letter> getAvailableLetters(Student student) {
-        Log.i(getClass().getName(), "getAvailableLetters");
+        Log.i(getClass().getName(), "getUnlockedLetters");
 
         List<Letter> letters = new ArrayList<>();
 
@@ -72,7 +72,7 @@ public List<Letter> getAvailableLetters(Student student) {
      * default list.
      */
     public List<Number> getAvailableNumbers(Student student) {
-        Log.i(getClass().getName(), "getAvailableNumbers");
+        Log.i(getClass().getName(), "getUnlockedNumbers");
 
         List<Number> numbers = new ArrayList<>();
 
diff --git a/contentprovider/build.gradle b/contentprovider/build.gradle
index a67b2eb..0f4a121 100644
--- a/contentprovider/build.gradle
+++ b/contentprovider/build.gradle
@@ -8,8 +8,8 @@ android {
     defaultConfig {
         minSdkVersion 21
         targetSdkVersion 23
-        versionCode 1005002
-        versionName "1.5.2"
+        versionCode 1005003
+        versionName "1.5.3"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
 
diff --git a/contentprovider/src/main/java/org/literacyapp/contentprovider/ContentProvider.java b/contentprovider/src/main/java/org/literacyapp/contentprovider/ContentProvider.java
index df54a7f..87b28c7 100644
--- a/contentprovider/src/main/java/org/literacyapp/contentprovider/ContentProvider.java
+++ b/contentprovider/src/main/java/org/literacyapp/contentprovider/ContentProvider.java
@@ -6,7 +6,7 @@
 import android.util.Log;
 
 import org.literacyapp.contentprovider.dao.AudioDao;
-import org.literacyapp.contentprovider.dao.CustomDaoMaster;
+import org.literacyapp.contentprovider.dao.DaoMaster;
 import org.literacyapp.contentprovider.dao.DaoSession;
 import org.literacyapp.contentprovider.dao.ImageDao;
 import org.literacyapp.contentprovider.dao.LetterDao;
@@ -29,9 +29,9 @@
  */
 public class ContentProvider {
 
-    public static final int INITIAL_LETTER_COUNT = 3;
+    private static final int INITIAL_LETTER_COUNT = 3;
 
-    public static final int INITIAL_NUMBER_COUNT = 3;
+    private static final int INITIAL_NUMBER_COUNT = 3;
 
     private static DaoSession daoSession;
 
@@ -40,16 +40,16 @@ public static DaoSession initializeDb(Context context) {
 
         // Initialize greenDAO database
         String dbName = Environment.getExternalStorageDirectory() + "/.literacyapp/database/literacyapp-db";
-        CustomDaoMaster.DevOpenHelper openHelper = new CustomDaoMaster.DevOpenHelper(context, dbName, null);
+        DaoMaster.DevOpenHelper openHelper = new DaoMaster.DevOpenHelper(context, dbName);
         SQLiteDatabase db = openHelper.getReadableDatabase(); // read-only
-        CustomDaoMaster daoMaster = new CustomDaoMaster(db);
+        DaoMaster daoMaster = new DaoMaster(db);
         daoSession = daoMaster.newSession();
 
         return daoSession;
     }
 
-    public static List<Letter> getAvailableLetters() {
-        Log.i(ContentProvider.class.getName(), "getAvailableLetters");
+    public static List<Letter> getUnlockedLetters() {
+        Log.i(ContentProvider.class.getName(), "getUnlockedLetters");
 
         // TODO: get current Student
         Student student = null;
@@ -85,8 +85,18 @@ public static List<Letter> getAvailableLetters() {
         return letters;
     }
 
-    public static List<Number> getAvailableNumbers() {
-        Log.i(ContentProvider.class.getName(), "getAvailableNumbers");
+    public static List<Letter> getAllLetters() {
+        Log.i(ContentProvider.class.getName(), "getAllLetters");
+
+        LetterDao letterDao = daoSession.getLetterDao();
+
+        List<Letter> letters = letterDao.loadAll();
+
+        return letters;
+    }
+
+    public static List<Number> getUnlockedNumbers() {
+        Log.i(ContentProvider.class.getName(), "getUnlockedNumbers");
 
         // TODO: get current Student
         Student student = null;
@@ -123,7 +133,7 @@ public static List<Number> getAvailableNumbers() {
     }
 
     public static List<Number> getAllNumbers() {
-        Log.i(ContentProvider.class.getName(), "getAvailableNumbers");
+        Log.i(ContentProvider.class.getName(), "getAllNumbers");
 
         NumberDao numberDao = daoSession.getNumberDao();
 
@@ -132,18 +142,18 @@ public static List<Number> getAllNumbers() {
         return numbers;
     }
 
-    public static List<Letter> getAllLetters() {
-        Log.i(ContentProvider.class.getName(), "getAvailableLetters");
-
-        LetterDao letterDao = daoSession.getLetterDao();
-
-        List<Letter> letters = letterDao.loadAll();
-
-        return letters;
-    }
+//    public static List<Word> getUnlockedWords() {
+//        Log.i(ContentProvider.class.getName(), "getUnlockedWords");
+//
+//        WordDao wordDao = daoSession.getWordDao();
+//
+//        // TODO
+//
+//        return words;
+//    }
 
     public static List<Word> getAllWords() {
-        Log.i(ContentProvider.class.getName(), "getAvailableWords");
+        Log.i(ContentProvider.class.getName(), "getAllWords");
 
         WordDao wordDao = daoSession.getWordDao();
 
@@ -152,20 +162,12 @@ public static List<Word> getAllWords() {
         return words;
     }
 
-    public static List<Word> getAllWordsOrderedByFrequency() {
-        Log.i(ContentProvider.class.getName(), "getAvailableWords");
-
-        WordDao wordDao = daoSession.getWordDao();
-
-        List<Word> words = wordDao.loadAll();
-
-        return words;
-    }
+    // TODO: getUnlockedStoryBooks()
 
     // TODO: getAllStoryBooks()
 
     public static List<Audio> getAllAudios() {
-        Log.i(ContentProvider.class.getName(), "getAvailableNumbers");
+        Log.i(ContentProvider.class.getName(), "getUnlockedNumbers");
 
         AudioDao audioDao = daoSession.getAudioDao();
 
@@ -175,7 +177,7 @@ public static List<Audio> getAllAudios() {
     }
     
     public static List<Image> getAllImages() {
-        Log.i(ContentProvider.class.getName(), "getAvailableNumbers");
+        Log.i(ContentProvider.class.getName(), "getUnlockedNumbers");
 
         ImageDao imageDao = daoSession.getImageDao();
         
@@ -184,12 +186,20 @@ public static List<Image> getAllImages() {
         return images;
     }
 
-//    public static List<Image> getImages(Word word) {
-//        // TODO
-//    }
+    public static Image getImage(String title) {
+        Log.i(ContentProvider.class.getName(), "getImage");
+
+        ImageDao imageDao = daoSession.getImageDao();
+
+        Image image = imageDao.queryBuilder()
+                .where(ImageDao.Properties.Title.eq(title))
+                .unique();
+
+        return image;
+    }
 
     public static List<Video> getAllVideos() {
-        Log.i(ContentProvider.class.getName(), "getAvailableNumbers");
+        Log.i(ContentProvider.class.getName(), "getUnlockedNumbers");
 
         VideoDao videoDao = daoSession.getVideoDao();
 
diff --git a/contentprovider/src/main/java/org/literacyapp/contentprovider/dao/DaoMaster.java b/contentprovider/src/main/java/org/literacyapp/contentprovider/dao/DaoMaster.java
index f8adfc4..c20e883 100644
--- a/contentprovider/src/main/java/org/literacyapp/contentprovider/dao/DaoMaster.java
+++ b/contentprovider/src/main/java/org/literacyapp/contentprovider/dao/DaoMaster.java
@@ -14,10 +14,10 @@
 
 // THIS CODE IS GENERATED BY greenDAO, DO NOT EDIT.
 /**
- * Master of DAO (schema version 1005002): knows all DAOs.
+ * Master of DAO (schema version 1005003): knows all DAOs.
  */
 public class DaoMaster extends AbstractDaoMaster {
-    public static final int SCHEMA_VERSION = 1005002;
+    public static final int SCHEMA_VERSION = 1005003;
 
     /** Creates underlying database table using DAOs. */
     public static void createAllTables(Database db, boolean ifNotExists) {