The book The Plant Mildews includes 24 chapters. 11 chapters are on downy mildews of various crop plants with 55 downy mildew diseases while 13 chapters are on powdery mildew diseases of various crops with 92 powdery mildew diseases.The mildew diseases around the world included in the book are 147 with detailed information on each mildew disease including pathogen responsible, its host range, geographical distribution, disease symptoms, epidemic and losses, disease cycle, weather parameters and disease forecasting, and disease managements.This is the only book on mildews of crop plants which include both downy mildew and powdery mildew diseases and will be useful for researcher, students, extension workers and farming communities.