Dive into AVL tree insertion with this comprehensive tutorial that solves two practical problems using diagrams and detailed explanations. Learn how to balance an imbalanced binary search tree using rotations and create an AVL tree from an insert sequence of node values. Explore the four rotation cases: LEFT LEFT, RIGHT RIGHT, LEFT RIGHT, and RIGHT LEFT, with step-by-step demonstrations for each scenario. Gain a solid understanding of AVL tree operations and their implementation in data structures and algorithms.