This fourth edition of the Textbook consists of Eight Sections, divided into 39 Chapters, which cover the entire spectrum of fungal infections, spanning from superficial to opportunistic infection along with the latest information on therapeutic modalities. The pseudofungal infections, mimicking typical fungal diseases, are also given in a separate Section. The Textbook encompasses interesting historical aspects pertaining to Medical Mycology and has valuable references for further reading by the students. It contains a very useful introductory chapter on the basics of medical mycology. The last Section has seven Appendices, pertaining to various procedural details mentioned in the text of the Book. One of them is exclusively devoted to the antifungal susceptibility testing.