The literature on fungi is huge and expanding rapidly. Many undergraduate students do not have sufficient time to read original publications, and rely solely on the course teacher due to non -availability of illustrated practical book in this field. The book tries to give important and useful information at one place. The main emphasis of this book is to present the fungi in such a simple way which can be understood by students. This book is designed to fulfill the syllabus by covering various aspects of fungi. It provides something for everyone from beginners to advanced students and researchers. There has been a continuous need to add atleast some additional recent text and more illustrations to the book for the subject which will benefit the students.