In using the word roadmap I am referring to a series of book one should read in order to get acquainted with a concept or a field of study (following the usage of the word in MathOverflow). I am studying to become a probabilist and a few days ago I found and read part of this book on neuron models, which I found extremely fascinating. I talked about it with a professor of mine and he suggested me to read something about Boltzmann Machines (and Markov Random Fields, but that's another story). I know nothing about neural computation and this is why I am asking for a roadmap to be able to understand what it is about and, finally, what Boltzmann Machines are and why he suggested me that I should read about them.
I found this book by Johann Hertz through an answer given to a question similar to mine on Quora, but it is quite old and I am not all too sure about it.
Do you have any suggestions about what to read, be they publications or books?