I have put together a list of multicolor crochet techniques that everyone should try! These are great techniques suitable for any level.
30+ Stunning Crochet Stitches - Crochet 365 Knit Too
PATTERN: Mosaic Blanket Crochet Pattern a Very Rainbow Blanket Mosaic Crochet Technique - Sweden
Magnificient Mosaic Crochet Patterns - Crochet 365 Knit Too
How To Carry Yarn in Crochet (no weaving in ends!)
49 - Changing Color in Crocheted Thermal Stitch
12 Stunning Free Multicolor Crochet Patterns - Nicki's Homemade Crafts
Mosaic Crochet Workshop Book – Mary Maxim
35 Tunisian Crochet Stitches With Helpful Video Tutorials
Ultimate List of Textured Crochet Stitches - All Free!
Patterns Keep Calm and Crochet On U.K
30+ Stunning Crochet Stitches - Crochet 365 Knit Too
Crochet for Beginners: Quick and Easy Way to Master Spectacular Crochet Stitches in 3 Days (Crochet Patterns): Brown, Emma: 9781520591964: : Books
Nicki's Homemade Crafts