Huh, yeah, me myself struggle with this thing. I have lots of books I would like to read, but I really do not have time for this... I dream for a time were my income will be 90% passive and then I'll be free to read a lot. :D

For now I found for myself such thing as Mentorbox - they have some videos and short workbooks on popular books on entrepreneurship. This way you can save time and find out fundamental business ideas just by watching the video.

Good luck with your book!