What books would you recommend about Greenhouses?
Greenhouse Gardener's Companion by Shane Smith
All about Greenhouses by Ortho Books
Greenhouses by Sunset Books
Building Your Own Greenhouse (Greenhouse Basics) by Mark Freeman
Gardening in Your Greenhouse (Greenhouse Basics , No 2) by Mark Freeman
All About Gardening by Ortho Books
Secrets to a Successful Greenhouse and Business : A Complete Guide to Starting and Operating A High-Profit Organic or Hydroponic Business That Benefits the Environment by Ted M. Taylor
Greenhouses for Homeowners and Gardeners by John W. Bartok, Jr.
The Four Season Gardener by Elliot Coleman
Some books about soil were also recommended:
The Soil and Health by Sir Albert Howard
The Secret Life of Plants by Peter Tompkins, Christopher Bird
Secrets of the Soil : New Solutions for Restoring Our Planet by Peter Tompkins, Christopher Bird