The "Essential Guide to ANSI C" by Nabajyoti Barkakati is a comprehensive textbook on the subject of computer programming specifically focusing on ANSI C. Published in 1988 by SAMS, this first edition book is part of the "Essential Guide Ser." series. With 247 pages, this hardcover book is designed for intermediate educational levels such as high school. Written in English, this essential guide covers essential concepts and guidelines for understanding and mastering ANSI C programming language.