If your street art knowledge is limited to the Banksy works that you see pop-up online all the time, check out The World Atlas of Street Art and Graffiti to expand your horizons. Consider it the encyclopedia of street art. The 400-page book delves into the work of more than 100 of today’s biggest urban artists. Some you probably know (Shepard Fairey, for example) and others will be completely new to you. The book is organized by location and will take you on a graffiti tour of the world as you flip through the pages. Let it inspire you to go tag an overpass or something.