Books are great, bu the best thing you can do, once you get the basics of a language, is to build something. It doesn't really matter what, but the practical experience you get getting something up and running on whatever platform, deciphering error messages, fixing bugs, and generally managing your project is more valuable than hundreds of hours spent reading books or watching videos. Also working on something interesting helps keep you motivated to get you through the inevitable roadblocks you'll hit while learning.