Intuitive
The Bohr magneton is the natural unit expressing the magnetic moment of the electron. Electrons have a magnetic moments because they a property called spin (a sort of intrinsic magnetic moment) and they in sometimes go circles.
Concrete
In this section things should be explained by analogy and with pictures and, if necessary, some formulas.
Abstract
The motto in this section is: the higher the level of abstraction, the better.
Why is it interesting?