Readers will discover how a retiree brightens his day with numerical calisthenics and what linear and quadratic equations or the simple Gauss sum have to do with owning a plot in a community garden or training as a salesperson in a supermarket. And who among us couldn’t benefit from using propositional logic to express ourselves more clearly instead of talking in a roundabout way about our thoughts and feelings. Finally, the author takes us on little adventure beyond our planet to teach us how every day math might help us deal with a complete computer failure in infinite space.