Beginning C written by Ivor Horton is an outstanding book for anyone wishing to learn/review the C programming language. I read lots of tutorials over C and was lost but i read this book and I obsorbed it. Horton does a really great job teaching a widely used language and having fun along the way.

The website for the folk who wrote it is www.wrox.com and the book as of when i bought it is in its 2nd edition.

If you want to learn C and couldn't grasp it before try this book. Did wonders for me!