If you are wanting to step up your cosplay game, then Humble Bundle has you covered. The Cosplayer’s Bookshelf (affiliate link) is a new book bundle featuring 40 different books valued at $656 to help you become the master of cosplay.
There’s a lot about wigs and armor, but there’s also stuff about more general sewing, using foam, and more. Oh, and all of this only costs $18 (or anything higher if you’re willing). Each purchase will have a portion donated to the charity of your choice. What are you going to learn about?