The Gregg Reference Manual by William A. Sabin 5th Edition is a valuable reference book focusing on writing and reading skills. Published by McGraw-Hill in 1977, this paperback manual contains 326 pages filled with practical tips and guidelines for improving writing and communication skills. With a compact size of 8.7 inches in length and 8.3 inches in width, this book is a convenient and essential resource for anyone looking to enhance their writing abilities in English.