Understand the Breadth-First Search Pattern to solve leetcode problems

Understand the Depth-First Search Pattern to solve leetcode problems

Understand the two pointers technique to solve leetcode problems

Understand the sliding window pattern to solve leetcode problems

Understanding how Swift Compiler optimises applications for speed of execution

Mastering the use cases of Phantom Types in Swift

Workraround type-safe restrictions from the Swift compiler

How to implement thread-safe arrays in Swift

How to implement method swizzling to replace system methods with our own implementation in runtime

Great learning and quotes from the great book