Robinson by Muriel Spark. Penguin Books, 1964. Cover drawing by Terence Greer.
I have not yet read Muriel Spark, but I’ve noted she’s been compared to Ann Quin and Anna Kavan. Robinson looked more interesting to me (and shorter) than her more famous novels The Prime of Miss Jean Brodie and Memento Mori, and I love this cover.
Alchemy by Titus Burckhardt. Penguin Books,1974. Cover design by Walter Brooks, using a drawing from Basilius Valentinus’s “Aurelia Occulta Philosophorum” in Theatrum Chemicum, Argentoratie, 1614. vol. IV. Chocked full of glorious black and white images.