Sketching lectures by ourselves and others that do not follow the chapter structure of the book.

Sketching Interaction – Nicolai Marquardt
Guest lecture at LMU Munchen in the course Interaction Design, Winter 2012.

Sketching User Experience– Rémi Barraquand
A slideshare presentation largely including (in modified form) illustrations based on Buxton’s book and Greenberg’s (earlier) presentations.

Sketching Part 1 and Part 2 – Julie Kientz
HCDE 418 Course on User Experience Design, University of Washington.

Introductory HCI: User Interface Design, Prototyping, and Evaluation  – James Landey
See the course lectures, University of Washington.