Hi everyone

,
I understand the title of this thread may be a bit arbitrary; what does "success" really mean?
By success, I suppose I mean, sold more than 1-3 copies (hehe, I have humble expectations).
I, like many other forum members I suppose, am on the fence of writing an eBook. I am a web developer for a living, and I thought it would be fun and possibly profitable to write a book targeting graphic/print designers that teaches them the basics of HTML and complex CSS layouts. The book would use simple, non technical language, include screenshots and diagrams and really be suited well for someone with a graphic design background but who lacks any coding knowledge what-so-ever.
Right now I've told myself the only way I should write the book is if I can adopt a "I don't care if it sells zero copies, I should do it for my own enjoyment" mindset. I suppose if I could hear a few success stories (even if they are very humble success stories) it would push me over the tipping point.
Oh well, enough about my situation... share your eBook (success) stories people

. Oh, and any topic or genre of eBook is welcome

.