The 1919 book Wireless Photographic Transmission Second Edition, Revised and Enlarged by Marcus J. Martin is an important source of information on wireless image transmission technology in the early 20th century. This book details the principles and methods of transmitting photographs using radio and other wireless technologies of the time. The author invites the reader to show interest in the history of wireless communication and photography, revealing not only technical aspects, but also important sociocultural and applied information. The second revised and expanded edition contains additional material and updated information that make this book an even more valuable resource for those interested in the history and development of photographic technology.