What a great performance, writing a book is not what is that easy not to talk of writing on bitcoin, this is a great achievement you have earned for yourself, it will be a guide in helping the newbies to understand the history of bitcoin and have time to study both online and for the benefit of those who love reading the hard cover books, they can have it archived in their homes for reference, this will indeed be an impressive discovery for those that wanted to learn about bitcoin and it's history but prefer going through a reading material for their learning, congratulations.