Many things make this book extraordinary. Searle's amazing stamina to survive when overworked by the Japanese on the Kwai Railway, sick with jungle diseases, underfed to the point that you wonder that he could live - and yet he not only lived but kept drawing everything he saw: his fellow prisoners, his Japanese guards, the punishments, the sick, the wild animals, the railway - and always with the knowledge that such drawings were forbidden and, if caught, he might be executed. Yet this is a very encouraging story, even at times funny - as when he drew a Japanese guard asleep: the prisoners had made a deal with him that they would not escape if they let him sleep (instead of making them work). This is a book of illustrations and explanatory captions, making it highly readable. Searle tells of the (rare) Japanese officer who helped him draw, and of the way that many of his St Trinians ideas were inspired by the Kwai railway sufferings. Much more than a great cartoonist, Searle is a true artist, and his book explains how it happened.