Slams
Slams are friendship books that include a theme of questions, either "Sign if you did/like the following", "What is your favorite" or other similar questions. These usually include one page as a "sign in", several pages of questions, and then a "sign out" or "shout out" page at the end. Slams can be themed or regular. Typically they are small like a standard friendship book. Often they have a "sign-in" page where you put your label or name, then each page will often contain a question which you answer (i.e. When was the last time you said "I love you") and the signer would write the appropriate response. At the end there is often a sign-out page as well where it's dated. Slams have many variations and can be "sign if" slams (you sign only if the statement or question applies to you). These are handled in a number of ways, but most of them become more clear when you have it in-hand.
Read more about this topic: Friendship Book