The Freelance Way by Robert Vlach

I keep coming back to some ideas from the book, that keep inspiring me and guiding me in daily life, even though I am not freelancing currently.

I don't know any other book that would offer me such a comprehensive and clear information about freelancing. It brings a variety of AHA moments in the process and when you'll find yourself on the last page, you'll know that you now have a set of skills and knowledge that would otherwise take years of searching and hard work. If you are serious about your business career, this is one of the best investments you can make for yourself.

Sometimes it doesn't work, but it's not the bug of this book, but mine. All recommendations must be followed in the context of everything.