The book "Bioprospecting Fresh Water-Derived Fungi for Bioactive Compounds" offers a comprehensive study of fungi isolated from freshwater sources in Egypt. It highlights the diversity of fungal species found in the waterways, including Aspergillus, Penicillium, and Fusarium, and analyzes their potential for the extraction of bioactive compounds. The authors present the results of their research, which includes the identification of 21 fungal species, four of which were bioprospected for their phenolic compounds. High-performance liquid chromatography (HPLC) detected 22 phenolic compounds in the extracts, with methyl gallate and p-coumaric acid being highlighted as significant compounds. The book also discusses the antibacterial and larvicidal properties of these compounds, making it a valuable resource for researchers and professionals in the fields of biotechnology and pharmacology.