As a sometime contributor to the slick project, I think the "Essential Slick" book, that is one of those that has been open-sourced here, does fill a gap in the documentation. I've recommended it in the past and now I can just link to it. Big thank you to Underscore for doing this.
It's an easy read with good examples that helps you get to grips with the concepts.
It's an easy read with good examples that helps you get to grips with the concepts.