Finance for Non-financial Managers IN A Week by Roger Mason is by the Chartered Management Institute with each chapter covering one day of the week (have they never heard of a day of rest?).
It's not the easiest of books to read, but it is about finances, so can hardly be expected. The book covers profit statement, costs, debt, depreciation, fixed assets, debit and credit, working capital, cash flow, stock turn, investments, working capital, debtors, creditors, break even charts, sales budget ad a few other items.
And a few illustrations to lighten the mood which is not the easiest of reads, but nonetheless is helpful in areas.