Celebrating the unpredictability of life, Magnum’s Square Print Sale explores the happy accidents and unusual turns of events that lead to memorable images. Signed or estate-stamped, museum-quality 6×6” prints by Magnum Photos photographers are available for $100 for one week only. From its earliest days, photography has been associated with the unexpected: documentation of under-explored issues, reporting of events unfurling in far-flung locations, or single frames capturing split seconds of levity. Over more than seven...