Where UI guidelines come from: An interview with Jeff Johnson
UXpod - User Experience Podcast - A podcast by Gerry Gaffney
![](https://is1-ssl.mzstatic.com/image/thumb/Podcasts115/v4/8e/0e/48/8e0e4836-d331-d978-0925-5d4341bc93e7/mza_12815450915510958449.png/300x300bb-75.jpg)
Categories:
Jeff Johnson talks to Gerry Gaffney about user interface design guidelines, zombie processes, and why your first answer to the following question is typically wrong. A baseball and a bat together cost $110. The bat costs $100 more than the ball. How much does the ball cost?