Penguin Books sold paperbacks through Woolworths and other high street stores in the 1930s.
 Complementary to the Puffin Club the Puffin School Book Club, addressed specifically to schools and organisations, grew significantly in this period helping to confirm Puffin market position such that by 1983 one in three Penguin books sold was a Puffin
 In January 1941 the first issue of Penguin New Writing appeared and instantly dominated the market with 80,000 copies sold compared to its closest rival, Cyril Connolly's Horizon, which mustered 3,500 sales in its first edition

