All the “Index” Edition books contain a handy pocket in the back for receipts, baggage claims, a love note, or emergency $20 bill. The first pack contains two Log Books with spaces dedicated to record, rate, and review anything you can think of. They’re as flexible as they are useful, with ample room for notes and a table of contents in the front. The second pack contains one Ledger Book to track expenses, card game scores, mileage, etc. Also in this pack is an undated 56-Week Date Book.