The second of my screencasts on how and why we do proofs, "How do we do proofs? (Part I)", is now available at http://wirksworthii.nottingham.ac.uk/webcast/maths/G12MAN-09-10/How-Proofs-I-0910/ The final episode of the trilogy will be in two weeks time. I should, perhaps, clarify that I am running these as optional workshops for the second-year maths students at Nottingham: About 30-50% of the students came.