Longtime Pink Floyd member Richard Wright died a decade ago, and the group—whose other members have been feuding for years—disbanded in 2014. Interest in their music seems at least as intense now as it was when they were together, however, so the release of material from and about them continues unabated. In 2016, for example, the band issued a gargantuan box set, The Early Years, which focuses solely on their work from 1965 to 1972 and includes 11 CDs, eight Blu-ray discs, nine DVDs, five vinyl singles, and assorted memorabilia. (The eye-popping price tag: just under $500.) That same year, London’s Victoria and Albert Museum marked the 50^th anniversary of Pink Floyd’s first single by announcing a major exhibition devoted to their work. Now, two new books cover the band’s recorded legacy.

Pink Floyd: Album by Album, a well-illustrated volume from prolific Toronto-based rock journalist Martin Popoff…