You're welcome. There were a lot of interesting aspects to it- what a checklist can do and what it can't, what makes such a list useful (ideal length, specificity, ease of use, type of list, etc), and what types of things they can be the most useful for. It also brings up a lot of interesting points about not having redundant, useless checklists that are 8 miles long that people aren't going to use- but making a list that is tailored to the situation.
One of the things that I have been thinking about the most since I finished it was the differences between a more comprehensive, long term checklist used in the planning process (like we might use during prep week), and a shorter, more immediate checklist designed to be used quickly and in the moment (like an emergency procedure sheet). I'd love to start a discussion on this topic- if you read it and have thoughts about the book, let me know.