The following renders give a hint at the flexibility of this approach, a few examples of what you can do by simply loading a bookstack, in this case tthe Stack08 (2figs).cr2 figure and then running the reset and/or randomize and/or material helper scripts.

The (non-interactive) reset script makes it into a very tidy stack of curved hardbacks (the odd shadow here is, I think, due to the books being very small and not using ray-tracing for shadows)...

then just run the (non-interactive) randomize script  to get a jumbled stack....

Next run a material helper script to change to the classics and the interactive randomize script to select full 360 degree rotations....

...and the interacive randomize again to select only hardback geometries, twist and shear morphs, and small rotations...

...and again, but selecting just paperbacks, all morphs, position and size, and very small rotations - and run the material helper script for Pulp02

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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.