Why waste my time writing a book to try to TEACH you about Real-World business. Not the kind taught by professors who have no experience in the real world of business.
To answer your questions it would take many hours of writing a small book to do so. Since I am a businessman, I will do so if you pay me for my time to do so. Otherwise, buzz off.
Don’t bother with the book. I’ll find someone who knows what they’re talking about and ask them instead.