The bootcamp I attended recommended Codecademy, but after completing most of the exercises and still feeling unhappy, I found Free Code Camp (https://www.freecodecamp.com/). It has more to get your teeth in to, and there are some great tangible rewards for completing the program! That's just one of many, many resources out there...happy learning!

It totally depends on what type of bootcamp you are planning on attending. A lot of bootcamps specialize in specific languages or frameworks, and so you should plan your prep work based on the technologies you will be using. At Holberton School, we focus a lot on low-level, algorithms and data structures at the beginning. We want to make sure that students have a solid foundation of what happens under the hood before they get their hands on higher level programming.

We recommend that students read through The C Programming Language by Brian W. Kernighan, Dennis M. Ritchie. This book is great for both preparation, as well as a resource along the way.

The C Programming Language -   https://books.google.com/books/about/The_C_Programming_Language.html?id=FGk...