A Little Course in Crochet: Simply everything you need to succeed Great little book to get you started
200 Crochet Stitches: A practical guide with actual-size swatches, charts, and step-by-step instructions Stitch bible - very useful and clear
Crochet: The Complete Step-by-Step Guide (Dk) very comprehensive with more advanced technique
Every Which Way Crochet Borders: 139 Patterns For Customized Edgings finishing touches make all the difference