Zoologist Mike Dickison talks about the PhD research he's been doing on a flightless bird -- the "Big Bird" of the title.

"What, if Anything, Is Big Bird?" is the presentation that has garnered the most views on our site since we started sharing PK presentations online.

"Presentation of the Day" on January 28, 2013.

Let visual artist Lizzy Moyle walk you through some of her creative works, and beyond.

Architect Richard Hayman (Dalman Architecture Ltd.) uses his presentation to explore what architecture has meant to him.

This ones goes out to all the foodies out there, as Nik Mavromatis introduces us to new ways of cooking, also sharing with us how to create new tastes.