“Punching the Air," by Ibi Zoboi and Yusef Salaam (Balzer + Bray, 400 pp., ★★★½ out of four), is a narrative poem about mass incarceration and being Black in America, aimed at young readers.

THIS is the moment Nicola Sturgeon was filmed frantically punching the air on TV as the SNP ousted Lib Dem leader Jo Swinson from her East Dunbartonshire seat. The First Minister’s reaction came ...