I haven't had bad experiences with books on amazon, but amazon sold me a charger with a fake Intertek mark (Intertek is an UL competitor). When I told amazon their response was to refund the purchase (good), but continue selling the charger (um, are you fucking kidding me?)

product: https://www.amazon.com/gp/product/B013US9FFY

Intertek's statement: http://www.intertek.com/WorkArea/DownloadAsset.aspx?id=34359...