I received my Amazon order and I must say that Osprey's Chinese Army 1937-45 is a really good booklet. It covers the uniforms, weapons and the training in a concise and and highly informative manner. The colour plates are a kitbasher's dream. All in all I've been pleased with the latest offerings (i.e. the 400 series) from Men at arms. They've returned to the series' core interests.
Also, I think the publisher took to heart my scathing criticism against Osprey's miniseries on the Japanese army of WW II where the same authour(Philip Jowett) padded the booklets with a 3 page chronology of events that should've been dedicated to the uniforms and tactics. The booklet on the Chinese army includes a chronology but this time it provides the reader with a concise summary of the really important events without taking valuable pages as already noted for the Japanese volumes
I highly recommend the booklet even if WW II isn't your interest, there's still lots of great kitbashing ideas.