From Bouvier's Law Dictionary, Revised 6th Ed (1856)
BOOKS, commerce, accounts. Merchants, traders, and other persons, who are
desirous of understanding their affairs, and of explaining them when
necessary, keep, 1. a day book; 2. a journal; 3. a ledger; 4. a letter book;
5. an invoice book; 6. a cash book; 7. a bill book; 8. a bank book; and 9. a
cheek book. The reader is referred to these several articles. Commercial
Books : are kept by single or by double entry.