Script BookFiller v1.2 for 3dsmax 2008 (also works in 3dsmax 8, 9)
Fills bookshelf with books. User can adjust a set of parameters: skew angles, offset, quantity. Almost automatic workflow.

Installation:
 1. Utilities Panel > MAXScript > Run Script
 2. Find and open bookfiller_1.2.mse
 3. In the Utilities dropdownlist select "BookFiller"

Workflow:
Press the "Pick library-file" button and pick your file with books-models. There is an example inside archive.
When you will create your own library - look at the objects and pivot points positions.

Adjust parameters, press the "Pick bookshelf" button and choose bookshelf-object.
Script create and select books. Set right position with checkboxes "Rotate 180" and "Mirror".

If you need to adjust filling parameters - set new values of spinners and press "Swap books" button.
Don't deselect books while you work with them or until you select new bookshelf.
Script works only with selected books-objects.