These books are free at the time of posting, but probably won't stay so for long. You can download the Kindle app at the Amazon website--it's free and it works on "big computers" as well as handheld devices.
Getting Started with Crochet: The Ultimate Beginner's Guide by Dogwood Apps
Chunky Crochet Wrap by Sedruola Maruska
Camel Crochet: Camel Jersey Sweaters Pattern Book by Naka Pillman
Camel Crochet: Camel Afghans #2 Pattern Book by Naka Pillman (You need the basic Camel Crochet information--available in her other e-books--to make use of these patterns.)
Crochet Receiving Blanket Pattern by Michele Gaylor
Owl Ornament: Crochet Pattern by Michele Gaylor (I made these last Christmas--it's a quick, easy and cute pattern.)