The Observer's Book of Aircraft No. 11
This is one of the most successful of the Observer's Books and probably the title with the most editions for a collector. The book started life entitled 'The Observer Book of Airplanes' written by Joseph Lawrence and was issued with this title in 1942, 1943 & 1945. Interestingly this book was not issued as an Observers Series number until 1949. The 1949 edition saw a number of changes, the most notable being the change in the title from Airplanes to Aircraft. It was allocated the number 11 in the Observer's Series and the authors became William Green and Gerald Pollinger.
From 1955 until 1992 annual editions were published, each having their own cover design. As with the other Observer books, this title went through many forms. The editions between 1979 & 1982 were issued in pictorial boards, not with the usual dust jacket. Between 1983 & 1992 the book was published as a paperback in the New Observer's Series, with a new number N1. The final edition was the only one not to be published by Frederick Warne, being issued by Bloomsbury, returning to a hardback pictorial board format with yet another title change to "The Observer's Book of Airliners."