Data structures and algorithms are not abstract concepts, but a turbine that can turn your software into a Formula 1 car. Learn to use the Big O notation, choose the most appropriate data structures, such as hash tables, trees and graphs, to increase the efficiency and speed of your code, which is critical for modern mobile and web applications.

The book is full of real-life application examples in popular programming languages (Python, JavaScript and Ruby) that will help you master data structures and algorithms and get started apply them in everyday work. You'll even find a word that can significantly speed up your code. Practice your new skills by completing the exercises and detailed solutions provided in the book.

Start using these techniques now to make your code more performant and scalable.