This book aims to provide the student entrance for the use of fungi class, Yeasts in technical vital modern There is no doubt that an urgent need also to the need to keep abreast of educational curricula for various fundamental requirements of the labor market as the organizational aspects in the Arab Gulf States currently lacks to further studies and research different in this area, and with the lack of Arab library to this type of rare books, there is an urgent need for more authoring and translation in the field of technical vital to all living organisms minute.