hmm ok I see what you are trying to do. Ok no problem I can help.
Use the following site to create a short code by generating the function for a short code then adding the code it generates to your functions.php file:
https://generatewp.com/shortcodes/
As long as you fill in book on each code generator with “book” and the information it asks for it will create the post type and the short code for you. Good luck