Where can I find Advanced topics covered?

When you get ready to think of maximizing your production by growing your own seedlings, using a cold frame/hot house or building your own greenhouse, or growing plants vertically (as I do to achieve over 10,000 pounds of tomatoes on 1/22nd of an acre), consider the Mittleider Gardening Course, which includes what you see on the internet and about a dozen “advanced” topics, and is the student manual for any classes taught by the Food For Everyone Foundation.