# A Very Beautiful Book About ... Math

### Even math-phobes will find plenty to like in this 19th-century classic.

If you remember Euclidian geometry from high school, you probably remember geometric proofs looking something like the example shown above. There were always lots of letters — line AB and hypotenuse BC form angle ABC, or whatever.

But what if the various geometric elements were designated with colors instead of letters? Say, like this: