**On sale now!**

We’ve all be there. Standing at the chalkboard, (remember chalkboards?) we’ve all forgotten to “carry the two,” or made the cardinal sin of mathematics by attempting to divide by zero. Hey, it happens to the best of us sometimes.

So it’s comforting to realize that the rock stars of mathematics are prone to slip up on occasion as well. Only in their case, their mistakes may be so monumental as to approach greatness. [Read more...]

## Mathematical Curiosities by Alfred S. Posamentier and Ingmar Lehmann

On sale now.Today, we’ll delve into the exciting and exhilarating world of mathematics. Wait, wait, come back…

This week we’ll be looking at

Mathematical Curiosities: A Treasure Trove of Unexpected Entertainmentsout from Prometheus Books by Alfred S. Posamentier and Ingmar Lehmann. [Read more...]