This is a friendship book that I recently made.
Friendship books are little booklets that one makes for another person. It has a distinctive cover, and empty pages inside.
The idea here is to send the booklet to a friend, and have her sign it (with her name, address, hobbies, etc.) and then pass it on. When the book is completed, then the last person to sign it must send it back to the person for whom it was made.
Most times, each page is decorated by the person who signs it. When the books are highly decorated, they are called Decos.
This one is the size of an FB, but has the decor of a Deco.
Decos are generally a bit larger, to accommodate the embellishments.
I love doing these, but haven't made them since high school, which was a good 20 years ago!