Good day, will the book be Purbound? If so how many pages does the final book haev and on what paper will the book be printed so that I can calculate the spine size for the design... or will this be a digital book?

itle: BE THE LEADER Subtitle: The 10 Inner Disciplines of Exceptional Leadership Author Name: Yigal Adato Format Required: Front cover, back cover, and spine (for print) + flat front cover (for digital/PDF version) Book Size & Layout Trim Size: 11 x 8.5 inches Pages count after format: 103