""How To Know The Grasshoppers, Cockroaches And Their Allies: Pictured Key Nature Series"" is a comprehensive guidebook written by Jacques R. Helfer that focuses on identifying and understanding the different species of grasshoppers, cockroaches, and their relatives. The book is part of the Pictured Key Nature Series, which provides clear and concise information on various types of plants and animals.The book features detailed descriptions and illustrations...