Nevertheless, there are a few exceptions to this rule. 43 exceptions to be precise. Life and work of M.C. Escher, under the editorship of J.L. Locher, is the standard work about the artist in which 448 works are defined. Linoleum cuts, woodcuts, wood engravings, lithographs and mezzotints. No drawings—these are kept beyond the scope of this catalogue. Hence around 10% of all Escher’s work was produced in the summer months. Autumn, winter and spring each account for approximately 30%. Not an exact investigation.
These ‘summer works’ include early Italian landscapes, a number of works from the war years (when Escher was unable to travel), a genuinely ‘summery’ work like Phosphorescent Sea as well as some of his most famous works. Verbum, Balcony, Horseman, Up and Down, Relativity, Plane Filling II, Sphere Surface with Fish, Circle Limit IV (Heaven and Hell) and Snakes were all produced in July. August is less well represented. It seems this month for Escher really was holiday month.