Amber & Multibaby

Kevin collects postcards, a hobby known as deltiology. At a recent show, he learned first-hand about the importance of card classification. There are two general categories of cards: views and topical cards. Kevin discovered that cards featuring the Lower East Side might be categorized either as a view (Manhattan, or even as specific as Hester Street) or a topic (Judaica: Stores), and cards with apes might be found under "animals," or "gorillas," or even "monkeys" depending on the size of that vendor's collection.

If I collected postcards, I might collect the topic known as "multibaby."