The book, McDonnell Douglas Aircraft Since 1920 traces the history of two great aircraft manufacturing firms McDonnell and Douglas and their many predecessor companies.  Each product of these companies is described in detail along with its history of development and its operational service record.  Among the Douglas types reviewed: 1) The first Douglas transports; 2) The World Cruisers that made the first flight around the earth; 3) Numerous pre-war military types; 4) The DC-1, DC-2 and legendary DC-3; 5) The Devastator, Dauntless & Boston series of World War II; 6) The postwar piston powered DC-4, DC-6 and DC-7; 7) The postwar jet aircraft including the DC-8, DC-9 and DC-10; 8) The Cold-war era Skyray, Skyhawk & Skylancer and 9) The present day F-15 Eagle, F-18 Hornet, AV-8B Harrier & the YC-15 STOL.  Some of the more important projects are included and there is a full production list of Douglas aircraft at the back of the book.  The McDonnell types reviewed include: 1) Early type Phantom; 2) Banshee; 3) Goblin; 4) Voodoo and 5) Later type Phantom.  Other lesser-known types like the Whirlaway and Little Henry are also discussed in detail.  In summation, both Douglas and McDonnell have made significant contributions to the development of the world air transport and to the armed air forces of many countries.  The major sections of “McDonnell Douglas Aircraft Since 1920” are as follows: 1) Preface And Acknowledgments; 2) Author’s Notes; 3) Origin And History Of The Company; 4) Aircraft Designed And Built By McDonnell Douglas And Forebears (Approximately 85 Are Reviewed); 5) Appendix A – Production Summary; 6) Appendix B – Production Details And Douglas Serial Numbers; 7) Appendix C – Production Details And McDonnell Serial Numbers; 8) Appendix D – Selected Projects.  In addition to an informative narrative, “McDonnell Douglas Aircraft Since 1920” includes the following features: 1) Approximately 539 black and white photographs and 2) About 82 multi-view black and white aircraft illustrations.  This book is 721 pages and is in excellent condition.  The author is Rene J. Francillon.  Edition published in 1979.