By Peter Henshaw and Justin Harvey-James, this tome concentrates on the twin cylinder unit construction machines produced from 1957 to '74, covering every model, noting the differences between each, from touring 3TA through to race-winning 500cc Daytona, and what the press reports of the time said too. Aside from all the insider info required to be able to identify a model, there's also plenty of hints and tips for identifying year and specification of parts, and for maintaining and modifying your bike if you've acquired on of the unit construction tins. With lists of clubs, resources, sales figures and magazine reviews, it is part workshop manual, part easy reading and part reference manual. In shirt, if you have an interest in the subject matter, you should order a copy! - Old Bike Mart. To get straight into it, this is a great book. So if you'er into 350/500cc Triumphs - and into any other 350/500cc British classic - you might want to check this out. - Sump. This comprehensive book covers all models from the original 350cc aTA to the final T100 500cc Daytona and the TR5T trail bike. It details the model variants, advice on buying and living with a Triumph 350/500 along with technical specifications. - Nacelle. a fascinating trek through history and a general good read; a quality publication and well worth the GBP27.50 cover price for any enthusiast. - Ian Kerr.