Step-by-step tutorials for loom knitting can be found on Loom Knitting Videos, Knitting Board or in loom knitting books. Many of the online tutorials are in video format.
The top 10 books on loom knitting listed on the website Loom a Hat include books with tutorials for beginners. Loom Knitting Videos has step-by-step tutorials for projects such as summer shorts, boot cuffs and a hat and scarf. There are also tutorials for knitting specific stitches, such as the Celtic knot.
Knitting Board has written tutorials with step-by-step illustrations on the basics of single knitting, double knitting and sock knitting. It also has video tutorials on these techniques.