An elaborate oversize book suitable for displaying on a coffee table WordNet 3.0 & Open English WordNet

A coffee table book, also known as a cocktail table book, is an oversized, usually hard-covered book whose purpose is for display on a table intended for use in an area in which one entertains guests and from which it can serve to inspire conversation or pass the time. Wikipedia

A large book, usually with lavish illustrations, typically displayed on a coffee table. Wiktionary

Large book typically displayed on a coffee table. Wiktionary (translation)