Martin Luther King, Jr.’s Why We Can’t Wait was originally published in 1964 by Harper & Row (see the post on Fonts In Use). This mass-market paperback edition was published following King’s assassination in 1968.
The quote on the back is set in News Gothic, alongside the author’s name in Alternate Gothic and the title in Permanent Massiv, as seen on the front cover.
The interior is set in Times New Roman, with all-caps Century Expanded for chapter titles.