What you probably want to try is to use the tags system to divide the books into different books on different pages. Sort of like creating a "series" of the books you've written.

You would just create a new page with a new tag and use the booktable as parent. Make another page with the another tag to separate the pages. 

If you use the insert shortcode on a page you want for your 1st new tagged page - use the MyBookTable shortcode and go to All Books with Tag

and you will see the dropdown menu for tags. Choose the one you want for that page. Do the same for the other page. 

That should keep the pages separate.