I haven't read it yet, but I'd like to dig into the Compendium of the Catechism of the Catholic Church. Ironically, the condensed version has a much longer title.
Jimmy Akin has read the Compendium, and likes it. I happen to like Jimmy Akin, as we once sat and smoked together in a San Diego tobacco store, so you can trust his judgment.
One reason I'm anxious to get my hands on this volume is so I'll have better answers for my kids when they ask questions. Explaining justification is quite easy. Explaining the Trinity is not.