The 1981 classic Square Foot Gardening gets an update with All New Square Foot Gardening, by Mel Bartholomew. 

Grow more in less space! This 272-page garden guide teaches you how to plant the most hassle-free and fruitful gardens, in as little room as possible.

Included are plenty of photos and diagrams to help create the most simplified garden with just as much ease!

This 2006 edition includes a much larger appendix and has more charts, plant details and tips, straight from the author.

Other improvements include information on a new planting depth (only six inches), instructions on how to build bottomless boxes, ideas on how to save seeds, and new layouts and instructions for tabletop gardens (perfect for people with back pain who would like a higher surface area to work with or those with accessibility issues).