I had the opportunity to hear Greg Heisler speak a few months ago about his book 50 Portraits. I hadn't even thought of it at the time but once it finished I immediately regretted not filming it for our readers here. As luck would have it he repeated a similar lecture in NYC Ilford, and they recorded it! Yes, two hours is a decent chunk of time to devote to watching this, but you need to.
It isn't very often that we get to hear a master photographer discuss their work/life in so much depth. Being able to watch it again pretty much made my day.
Also, if you haven't seen the book yet...find a copy and check it out.
Via Ilford Blog