• Comprehensive troubleshooting encyclopedias for insects, diseases, and plant nutrients
• An electronic version of the book Home Hydroponic Gardens
• An extensive 64-page guide to greenhouse operation
• English to metric conversion and hydroponic ppm calculation spreadsheets
• An exhaustive list of growing media with important technical data
• Educational hydroponic materials for children of all ages as well as a curriculum for teachers
• Over 600 recipes for international foods, how-to references for self-reliant living, and more!