diff --git a/docs/documentation/library/0.0.1-alpha/create-the-main-class.markdown b/docs/documentation/library/0.0.1-alpha/create-the-main-class.markdown
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+---
+title: "Create the Main Class"
+layout: doc
+---
+
+Create a new class in your mod package that implements `MModdingModInitializer`:
+
+`MModdingExempleMod.java`
+```java
+public class MModdingExempleMod implements MModdingModInitializer {
+
+    public static MModdingModContainer mod;
+    
+    @Override
+    public List<ElementsInitializer> getElementsInitializers() {
+        List<ElementsInitializer> elementsInitializers = new ArrayList<>();
+        // Check the "Use ElementsInitializer" page
+        return elementsInitializers;
+    }
+    
+    @Override
+    public void onInitialize(ModContainer mod) {
+        MModdingModInitializer.super.onInitialize();
+        MModdingExempleMod.mod = MModdingModContainer.from(mod);
+        
+        // Your amazing code here
+    }
+}
+```
+
+<div class="notification is-warning">Warning: You must replace <code>MModdingExempleMod</code> by your mod's name!</div>
diff --git a/docs/documentation/library/0.0.1-alpha/create-the-main-class/use-custom-blockentity-types.markdown b/docs/documentation/library/0.0.1-alpha/create-the-main-class/use-custom-blockentity-types.markdown
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+---
+layout: doc
+title: "Use Custom BlockEntity Types"
+---
+
+With the `CustomBlockEntityType` class provided by the MModding Library, registering a new BlockEntityType is more simple.
+
+## **Create your BlockEntity class**
+
+`MModdingBlockEntity.java`
+```java
+public class MModdingBlockEntity extends BlockEntity {
+    
+    public MModdingBlockEntity(BlockPos pos, BlockState state) {
+        super(NOTHING, pos, state);
+    }
+}
+```
+
+<div class="notification is-warning">Warning: "NOTHING" is not permanent, we will replace it later.</div>
+
+## **Create and register your BlockEntityType**
+
+In your BlockEntityTypes class:
+
+`BlockEntityTypes.class`
+```java
+public class BlockEntityTypes {
+    public static final CustomBlockEntityType<TestBlockEntity> TEST = new CustomBlockEntityType<>(MModdingBlockEntity::new, BLOCK)
+	.createAndRegister(new Identifier("mmodding_exemple_mod", "testBlockEntityType"));
+}
+```
+
+<div class="notification is-success">Tip: Replace "BLOCK" by the instance of the block that uses the BlockEntity.</div>
+
+**Update your BlockEntity class**
+
+Replace "NOTHING" by your BlockEntityType:
+
+`MModdingBlockEntity.java`
+```java
+public class MModdingBlockEntity extends BlockEntity {
+    
+    public MModdingBlockEntity(BlockPos pos, BlockState state) {
+        super(BlockEntityTypes.TEST.getBlockEntityTypeIfCreated(), pos, state);
+    }
+}
+```
diff --git a/docs/documentation/library/0.0.1-alpha/create-the-main-class/use-element-initializers.markdown b/docs/documentation/library/0.0.1-alpha/create-the-main-class/use-element-initializers.markdown
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+---
+layout: doc
+title: "Use Element Initializers"
+---
+
+## **Create an Element Initializer**
+
+`MModdingModBlocks.java`
+```java
+public class MModdingModBlocks implements ElementsInitializer {
+    
+    // Init a block
+    public static final CustomBlock MMODDING_BLOCK = new CustomBlock(
+        QuiltBlockSettings.of(Material.METAL)
+    )
+    
+    @Override
+    public void register() {
+        // And register it
+        MMODDING_BLOCK.register(
+            new Identifier("mmodding_exemple_mod", "mmodding_block")
+        );
+    }
+}
+```
+
+<div class="notification is-success">Tip: For more information about the <code>CustomBlock</code>, go to the <code>CustomBlock</code> Page</div>
+
+# **Register an Elements Initializer**
+
+`MModdingExampleMod.java`
+```java
+public class MModdingExempleMod implements MModdingModInitializer {
+
+    // ...
+
+    @Override
+    public List<ElementsInitializer> getElementsInitializers() {
+        List<ElementsInitializer> elementsInitializers = new ArrayList<>();
+        // Add the Element Initializer in the List
+        elementsInitializers.add(new MModdingModBlocks());
+        return elementsInitializers;
+    }
+    
+    // ...
+}
+```
+
+By doing this, you won't need to call `MModdingExempleMod#register`.