Also, a couple of weeks ago there was the "Bay Area Deep Learning School" with 10/10 good lectures: http://www.bayareadlschool.org/schedule (best for someone who already has a bit of math or ML background)
nice...the 1st link is the draft for the Bengio group's book?
I think you're thinking of http://www.deeplearningbook.org/. The chapters I read from that were very good, but I didn't finish the book so hesitated to recommend it.