Mathematics is part of human culture. Humans are the only animals with a sense of humor. The elegance in Mathematics is directly proportional to the number of ideas a reasoning allows us to perceive, and inversely proportional to the effort we have to make for it. But the same does not apply to good humor, does it? Ioannis Stamoulos' book is an original attempt to bridge the gap between "serious" mathematics and humor. As Professor Michael Lambrou of the University of Crete says, "one does not see mathematical formulas, axioms, theorems, lemmas, and conclusions in the book, but sees a rich collection of small entertaining stories, like wise sayings, each with a lesson. It is an enjoyable book, written with grace. A book in which humor is the common component of its lessons." Or as cartoonist K. Mitropoulos says, "a lively, refreshing, cheerful, and imaginative book. I was impressed by the abundance of references. The invention of the connection between mathematics and humor, I admit, is unique!"