Despite being one of the world’s most famous image-makers, MC Escher has long found his most fervent fans are geometers, not art critics. Straddling both camps, historian of mathematics Thomas Glasman ponders the prince of paradoxes

Quentin Blake, the illustrator known for his charismatic Roald Dahl characters, has opened a space dedicated to the craft in London

The French photo festival Les Rencontres d’Arles spotlights photobooks, family histories and new readings of forgotten archives

Last chance to see: an exhibition at Senate House Library traces the printer-publisher’s huge influence across country

Tate’s upcoming Frida Kahlo exhibition reflects on her artistic legacy – and her posthumous commercialisation

The artist’s playful and daring participatory works will be re-enacted at a retrospective by California institution BAMPFA, decades after their debut

Snap-happy photographer Paul Laib fastidiously documented Barbara Hepworth’s Hampstead home and studio, which she shared with her partner Ben Nicholson. A new exhibition at the Courtauld sheds light on this extraordinary archive

Honk if you love Bold Tendencies, Peckham’s vibrant parking lot gallery and premium rooftop pit-stop. You won’t be alone – as Charlotte Mullins finds, Hannah Barry’s vision turned this disused building into one of London’s must-visit destinations