Our Spring issue featured “Sample Trees,” a portfolio by Thomas Demand and Ben Lerner. Demand constructed and photographed paper flowers based on a detail from a news photo of Katherine Russell, the widow of the Boston Marathon bomber Tamerlan Tsarnaev; Lerner wrote a series of poems to accompany the photos.

“Sample Trees” is part of a larger cycle, Blossom, available now from Mack Books in a lavish Japanese-bound hardcover. Tomorrow, November 10, the pair will be at the MoMA Design and Book Store (11 West Fifty-third Street) to celebrate and sign copies of the book. The signing begins at seven P.M. We hope to see you there.