Learn about AVL trees, a self-balancing binary search tree, in this comprehensive video tutorial. Explore the concept of balance factor and understand the four basic rotations used for balancing: Left Rotation, Right Rotation, Left-Right Rotation, and Right-Left Rotation. Discover when rotations are necessary and why AVL trees are advantageous. Follow along with detailed explanations and visual diagrams to grasp the intricacies of AVL tree operations and their implementation in data structures.