its the keen Cocker show persons/breeders bible. All the top dogs (of the time it was publiushed in the 90's) and their ancestry's in there with excellent pictures stuff on breeding, grooming, show standard the lot. Even now - I get mine out every now and then just to look at the gorgeous cockers and info at contains.
It's no longer printed and although copies do come up - it's not very often so they can fetch a good price, although often if a cocker lover no longer needs theirs - they'll sell to a like minded aquantance for cover price £25.
hth