Visit the Official M.C. Escher website.

08/09/2018 – From Facebook comment by CL Dalstrom:
“In 1960, MC Escher met an elderly American woman on a cruise. When they disembarked, she game him this limerick which she had written.”

A charming co-traveler Escher
Has given us all so much plesher
That the prospect of leaving
Tomorrow is grieving
Me to an unreasonable mescher