'A unique feature of the book is the method of presentation which the author has adopted, namely the whole work is hand-lettered! This presentation, coupled with its guinea-a-minute information must surely make the book a winner for the educational and personal computing market. Especially to be applauded is Alcock's attempt to make the basic he describes as machine-independent as possible, and to this end he examined eleven different versions of the language and points out their variations. No one interested in computing (or presentation of information) should be without this fascinating work.' Computer Bulletin