The stretching/distortion seems unavoidable with the simplistic mesh/mapping when combined with a simple yScale to make the books thicker, spinewise. To avoid drifting off-topic here I've started a new thread over on the HiveWire 3D Content Development forum for the book stuff - My rather infrequent, and possibly apocryphal, 'books project'..

I've also added 'Medea's Guide To Child Care' to an ever-growing list of book titles over on my Render A (Stupid) Story Title thread (at DAZ).

I like the story - the owner's surname didn't happen to be Bacon did it ?

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The 3Dcheapskate (also available in DAZ and HiveWire3D flavours) occasionally posts sensible stuff. Usually by accident.
And it usually uses Poser 11, with units set to inches. Except when it's using Poser 6 or PP2014, or when its units are set to PNU.