I would suggest signing up for the coursera machine learning course by andrew ng, it's free and is supposed to be a good introduction to modern ai techniques. Also this book: https://www.amazon.com/Deep-Learning-Adaptive-Computation-Machine-ebook/dp/B01MRVFGX4/ref=sr_1_3?ie=UTF8&qid=1510273866&sr=8-3&keywords=deep+learning seems to be the most modern ai book that focuses on deep learning stuff