Mushrooms are fungal form of life. Their agriculture is different from the usual type of farming and has two main phases: spawn- and fruiting body production. This Book contains detailed information on spawn preparation, and the cultivation, processing, and marketing of White button, Shiitake, and Oyster mushrooms. The book is written unambiguously for small scale cultivators and without partiality against any group of growers. Thus, the book will be useful for policy makers, students, teachers, researchers, consultants, development agents, farmers, and home and commercial mushroom growers.