I’m interested in having a greenhouse someday and began reading Gardening Under Lights by Leslie F. Halleck with greenhouse ideas in mind. The first fifth of the book explains light for plants scientifically and in depth with the variations and types of light. The next section discusses grow lamp options and their effects on plants. Then the following: growing environments, pests and diseases to be aware of, plant care and propagation and, the final section: edible plants and ornamental plants, make up the biggest part of the book with plants listed alphabetically in both categories. This is botanical level information, which is helpful but I would prefer a more concise instructional guide for plant growth, 4 stars.