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# Chapter 7.   Tree

![Tree](../assets/covers/chapter_tree.jpg){ class="cover-image" }

!!! abstract

    The towering tree, full of vitality with its roots deep and leaves lush, branches spreading wide.
    
    It vividly demonstrates the form of data divide-and-conquer.

## Chapter Contents

- [7.1   Binary Tree](https://www.hello-algo.com/en/chapter_tree/binary_tree/)
- [7.2   Binary Tree Traversal](https://www.hello-algo.com/en/chapter_tree/binary_tree_traversal/)
- [7.3   Array Representation of Tree](https://www.hello-algo.com/en/chapter_tree/array_representation_of_tree/)
- [7.4   Binary Search Tree](https://www.hello-algo.com/en/chapter_tree/binary_search_tree/)
- [7.5   AVL Tree *](https://www.hello-algo.com/en/chapter_tree/avl_tree/)
- [7.6   Summary](https://www.hello-algo.com/en/chapter_tree/summary/)