The book PRACTICES IN MYCOLOGY: FROM CONCEPT TO LABORATORY, in its first edition, shows the need for greater knowledge of mycoses in the state of Piauí, with the intention of greater academic enrichment. It covers everything from fungal biology to clinical interpretation. The chapters were written with the help of health professional collaborators, who dedicated themselves to writing the book. It is therefore hoped that the book will contribute to knowledge and improvement in the field of mycoses.