It’s been four years since – sadly – Gerald M. “Jerry” Weinberg passed away. Ever since then, I struggled with some public mourning about him, until recently I had just the right idea. On a weekly basis, I will publish a review of a book I read that Jerry either wrote himself or is about some of his work. Today, we are going to take a look at Are your lights on? – How to figure out what the problem REALLY is coauthored with Donald C. Gause. published by Dorset House Publishing in 1990.