Walking Euler's Bridge

Walking Euler's Bridge is devoted to insights into the nature of number. It can be used as a companion to a first or second course in the Theory of Numbers or in high school to add something to a course with good students. The British with their droll ways say: "a person is good at their sums". This can mean they are good at keeping their personal finances straight, but it most often means that they know a good deal about mathematics. One of the foundations of mathematics is arithmetic, which everyone learns at an early age, mostly by rote. The reader will find out that this most elusive of concepts, number, is hauntingly beautiful and fascinating.