It doesn't cover the last 3 years of production, and it is an illegal copy (eBay forbids illegal sales, but it happens). The important thing when shopping is whether or not it covers your year model. There are differences. You should also make sure it is an updated manual. There was at least one update, in July of 1981, as can be seen on the second manual. There may have been later updates, even after the 152 went out of production in 1985 (I'm not at all sure). Buying an update for you manual isn't real cheap either, and the manual must have the latest updates incorporated in order to be legal for maintenance! Of course if it's just for your reference, that doesn't really matter.
Only Cessna can sell new 152 manuals or copies in any form, due to copyright laws, and a new set (service and parts manuals) goes for over $500, last time I checked. Anyone can sell an old original (the first one above appears to be original, but there's no guarantee, and no mention of updates!)
Cessna slipped up and let the copyright expire on 150 manuals, so everybody and his uncle can sell copies. They're even downloadable free on the Internet.