I really enjoy this box. Every month has a different color theme, and I usually end up sending out all the cards before I take any photos of them. The chemistry cards are probably my favorite. The pen also comes in handy. I started writing cards and doing the snail mail thing, as a way to honor my mom after she passed. She sent out cards weekly to friends an family just to let them know she was thinking about them. 100% would recommend to everyone.