19 Questions

I grabbed this for a long flight and it turned out to be way more engaging than I expected. Figuring out the answer just from the author's yes/no clues is a clever twist, and the mail-in 20th question postcard gives it a fun interactive hook I haven't seen in other little books.

The included postcards are the best part—I actually mailed in my 20th question and got a kick out of the whole concept. It’s a clever, quick little brain-teaser that makes you feel smart when you finally crack it.

The postcards are a clever touch—mailed one in and actually got a reply from the author. It’s a fun, quick brain teaser that made me feel like a detective for an afternoon.