Built to be used on a Tuesday.

Every chapter ends on a casebook. An organization that got something wrong, what it cost, and why the decision looked reasonable at the time. No villains, because there rarely are any. You will recognise yourself in a few of them, and that is the point.

The books refuse to print the numbers that move. No contractor test, no overtime threshold, no audit trigger. You get the structure underneath and a note telling you to check the current figure. A book that prints those numbers is wrong inside two years, and you cannot tell which parts.

No volume re-teaches what another one covers. Book Two keeps a donor, so Book Four never has to. When the answer lives in a different book you get a chapter number and one line, not four pages you have already read. Ten volumes, and no repeated page in any of them.

A literacy nonprofit, a diaper bank, and a community kitchen. The same people, the same budgets, the same mistakes, across all ten books. By the last volume you know whose reserve policy you are reading and what year they wrote it, which is why any of it sticks.

Every budget in the set reconciles. Every figure on a chart comes from the page beside it. Most sample budgets in print do not add up, and a founder who copies one learns, without ever being told, that a budget is decoration.

When the answer depends on your board, your town, or your funders, the book says so and hands the decision back. That is not modesty. You have seen your organization and nobody writing a book has, and a structure in your hands beats instructions from somebody working blind.