A book to be read for entrepreneurship

Hello , 

I came across this section in IF quite late must say. I needed a small help from the avid readers here. 

I am planning to start a IT solutions firm. Before that I need to get hands on the various factors of my business. 

Can anyone over here suggest a book which might help me with my entrepreneurship. 

Hope this topic is not breaking any rules of this forum. 

Thank you.