However, as I have said above, this evidently shows the necessity of book-keeping to a tradesman, and the very nature of the thing evidences also that it must be done with the greatest exactness.  He that does not keep his books exactly, and so as that he may depend upon them for charging his debtors, had better keep no books at all, but, like my shopkeeper, score and notch every thing; for as books well kept make business regular, easy, and certain, so books neglected turn all into confusion, and leave the tradesman in a wood, which he can never get out of without damage and loss.  If ever his dealers know that his books are ill kept, they play upon him, and impose horrid forgeries and falsities upon him:  whatever he omits they catch at, and leave it out; whatever they put upon him, he is bound to yield to; so that, in short, as books well kept are the security of the tradesman’s estate, and the ascertaining of his debts, so books ill kept will assist every knavish customer or chapman to cheat and deceive him.

Some men keep a due and exact entry or journal of all they sell, or perhaps of all they buy or sell, but are utterly remiss in posting it forward to a ledger; that is to say, to another book, where every parcel is carried to the debtor’s particular account.  Likewise they keep another book, where they enter all the money they receive, but, as above, never keeping any account for the man; there it stands in the cash-book, and both these books must be ransacked over for the particulars, as well of goods sold, as of the money received, when this customer comes to have his account made up; and as the goods are certainly entered when sold or sent away, and the money is certainly entered when it is received, this they think is sufficient, and all the rest superfluous.

I doubt not such tradesmen often suffer as much by their slothfulness and neglect of book-keeping, as might, especially if their business is considerable, pay for a book-keeper; for what is such a man’s case, when his customer, suppose a country dealer, comes to town, which perhaps he does once a-year (as in the custom of other tradesmen), and desires to have his account made up?  The London tradesman goes to his books, and first he rummages his day-book back for the whole year, and takes out the foot[32] of all the parcels sent to his chapman, and they make the debtor side of the account; then he takes his cash-book, if it deserves that name, and there he takes out all the sums of money which the chapman has sent up, or bills which he has received, and these make the creditor side of the account; and so the balance is drawn out, and this man thinks himself a mighty good accountant, that he keeps his books exactly; and so perhaps he does, as far as he keeps them at all; that is to say, he never sends a parcel away to his customer, but he enters it down, and never receives a bill from him, but he sets it down when the money is paid; but now take this man and his chap, together, as they are making up this account.  The chapman, a sharp clever tradesman, though a countryman, has his pocket-book with him, and in it a copy of his posting-book, so the countrymen call a ledger, where the London tradesman’s accounts are copied out; and when the city tradesman has drawn out his account, he takes it to his inn and examines it by his little book, and what is the consequence?