This entry is inspired by sigpfe's sigfpe's example of "picture as a myth".
There is an even more outrageous picture scam: for centuries, mathematics books featured 
this painting picture of Euclid of Megara, whereas the author of the Elements was Euclid of Alexandria!
P.S. I offered a prize to any student who can find a glaring error in our linear algebra text. No one succeeded, although in fairness to them, sleazy publisher cropped the picture.
