Book excerpt: In continuous publication since 1932, the 19th Edition of the Ball RedBook leads the way in floriculture education, with updated content on the most important technologies and most profitable crops (even cannabis!). Volume 1 Greenhouse Structures, Equipment, and Technology provides the most up-to-date and useful information about greenhouse structures, equipment, technology, and management. Inside, you'll find chapters devoted to structures, glazing, curtain systems, bench and floor growing systems, overhead growing, irrigation, environmental controls, mechanization, automation and robotics, pest control tools, hydroponics, cannabis/hemp cultivation facilities, retail greenhouses, managing your business, marketing your products, and more. Volume 2 Crop Culture and Production provides the most up-to-date and helpful growing techniques and cultural details required by professional growers. In Part 1 of this volume, you'll find chapters devoted to water, media, nutrition, pH, temperature, light, growth regulation, propagation, disease indexing, and postharvest care. Part 2 provides cultural details for more than 215 flower, herb, and vegetable crops (a 33% increase over the previous edition!) including an in-depth section on hemp and cannabis production. Each crop includes details about propagation, growing on, insect and disease control, troubleshooting, varieties, and postharvest care. Written and edited by seasoned green industry professionals and leading academics, the Ball RedBook presents the information in a clear, concise manner. This isn't theory--it's what is working today in real-world greenhouses.