Y Combinator’s own Kevin Hale is going to be teaching one of his favorite talks on the 5 laws every software designer should know about interface design tomorrow on Platzi (YC W15). It’ll be the first time that it’ll be recorded and he’ll walk designers through the experiments used to discover those laws and visualize the math behind them in ways that makes it easy to see how to apply them in day to day design work.

You can watch and participate in the livestream tomorrow starting at 12pm Pacific Time.