Maybe you are just getting into creating WordPress themes, or maybe you’ve been at it a while but still feel like you’re missing something. The good news is that WordPress themes can range from small to big and from simple to complicated — they are what you make them! This talk will cover the essentials: template hierarchy, The Loop, custom queries, and how to get more information or guidance from the Codex when you’re stuck. Soon you’ll be writing themes faster than you can think them up!

Slides: https://speakerdeck.com/johnheimkes/so-you-want-to-build-a-theme