Thanks for sharing! Do you mind if I ask: how much time did you put into writing the book, and how much time did you spend on promotion? And I did think this s

Thanks for sharing! Do you mind if I ask: how much time did you put into writing the book, and how much time did you spend on promotion? And I did think this statement was not quite realistic ;) "The book’s audience is software developers, a group of professionals who might earn $100, $150 or even $250 an hour." Other than that, I'm looking forward to reading your book!