Penguin’s recently released Little Black Classics series, a bargain-priced celebration of 80 years in the paperback trade, is bringing classic authors back into high demand. Karl Marx leads the pack, with the 64-page Communist Manifesto priced at a proletariat-friendly 80p. Other favorites include The Telltale Heart, Nietzsche’s Aphorisms on Love and Hate, and a slim volume of Emily Brönte’s poetry.