This book explores the antifungal properties of natural products and reviews their antifungal mechanism. An introductory chapter illustrates the various fungal pathogenic species, common fungal diseases, and general mechanisms of action of various antifungal classes, including natural products. The book comprises seven sections and each section contains chapters on the efficacy and antifungal mode of action of plant extracts, essential oils, natural compounds, their derivatives, and plant-based nanoparticles. A section summarizes the antifungal efficacy of compounds derived from sources other than plants, like microbes. Besides compound toxicity, the book explores the antifungal mode of action and efficacy against the virulence and pathogenicity of fungal pathogens like Candida, Aspergillus, Cryptococcus, Histoplasma, and other pathogenic fungi. Further, the book also describes recent advancements in the discovery of novel drug targets and therapeutic strategies that are non-toxic and more efficacious for combating drug resistance. This book is an invaluable source for researchers working in the field of fungal biochemistry, anti-microbial, and anti-bacterial and undergraduate and postgraduate students of microbiology and pharmacology.