There are many great articles on the web for C2C (corner to corner) tutorials; however, one of my favorites that includes step by step instructions is here: Basic Corner to Corner (C2C) Crochet Technique Tutorial.

Tutorial on how to crochet C2C or corner to corner. Make squares or rectangles for pillow cases, blankets... learn C2C increases and decreases. Fun and easy technique!

A question I get asked on a pretty consistent basis is "How Much Yarn Will I Need To Make This Blanket?" make a tutorial showing you how I figure out that information. Here is a link to her tutorial video: Fast and Easy Blanket: How Much Yarn Do You Need?

To add a new questi"How many squares should my (C2C) blanket be?" There simply is no right answer to this question. "Why?" you may ask? The reason is, there are so many variables that it is impossible to give an accurate answer. Blanket sizes are based on inches, not squares, stitches or rows. The size of your squares in your C2C depend on the type/weight of the yarn you are using, your hook size and your tension. For instance, if you do c2c (corner to corner) with a HDC stitch, a size 3.5 hook and 4 ply yarn, each square will be about half an inch in size. Which means an 80x100 graph will result in a 40x50 inch blanket. This C2C Blanket Size Calculator Will Make You A C2C Pro!