These are some of my recommended books for ICT-Business people and entrepreneurs. Keep also in mind that, entrepreneurship is not only about starting up companies. It is a behavioral, personal merit. So, read these books and try to apply them in your everyday practices.
1- Crossing the chasm (Geoffrey Moore)
2- Blue Ocean Strategy (W.Chan Kim and Renée Mauborgne)
3- Inside the Tornado (Geoffrey A. Moore)
4- Good to Great (Jim Collins)
5- Art of the Start (Guy Kawasaki)
6- Rules for Revolutionaries (Guy Kawasaki)
7- Made to Stick (Dan Heath & Chip Heath)
8- Weird Ideas that Work (Robert I. Sutton)
9- Relationship Selling: The Key to Getting and Keeping Customers (Cathcart, Jim)
10- Power Based Selling (Bosworth, Michael)
11- Influencing With Integrity (Laborde, Genie Z.)
12- Selling to the Top (Peoples, David A.)
13- The ultimate sales machine (Chet Holmes)
14- Escape Velocity (Geoffrey Moore)
IT - Telecom Business 
Thanks!,
I think those books are really really nice, thanks a lot