Crochet symbols & directions chart from Craftsy. Good article to read if you don't know how to crochet from charts. It's really a simpler way to work than from written instructions and it allows you to use all those gorgeous Japanese and Russian patterns!
The Best Knitters Guide: Crochet Stitches, Symbols & Abbreviations by Judy Cardwell
How To :: *Excellent* photo tutorial to crochet the Neat Wave stitch pattern, by Lucy of Attic24. Easy to understand, very detailed write-up with photos of exactly where to insert your hook (U.K. crochet terms, U.S. terms given). Starting chain is a multiple of 10 +1. Each color stripe is comprised of 2 rows. First part of 8-wk CAL for the 'Moorland Blanket'.