Log 40 assembles a wide-ranging collection of thoughtful essays on some of the most urgent questions and debates in architecture today, bringing them into dialogue with those of architecture’s recent past. The legacy and current status of architectural images are considered from radically different vantages, in Brett Steele’s anecdotal discourse on Zaha Hadid’s 1983 painting The World (89 Degrees), John May’s exacting dissection of “architecture after imaging,” and Hana Gründler’s exploration of the ethical implications of drawing borderlines. The issue features commentary by two contemporary architects on contemporary buildings: V. Mitch McEwen on David Adjaye’s National Museum of African American History and Culture in Washington, DC, and Elisabetta Terragni on OMA’s Fondazione Prada in Milan. Other highlights include an excerpt from Noah’s Ark, the new collection of Hubert Damisch’s singular writings on architecture; a lively response by Mark Foster Gage to Michael Meredith’s recent Log essay on indifference; and a sampling of new domestic objects designed by architects.