In 1942 Pines started Popular Library, a paperback publishing house, and devoted himself to that company after closing his other ventures. Popular reprinted materials from the pulps.[citation needed]
Startling Stories (1939–1955; 99 issues)(Following the cancellation of Captain Future in 1944 due to wartime paper restrictions, several CF novels appeared in this magazine immediately, and several short stories in the early 50s)
123Ashley, Michael; Ashley, Michael (2000). The history of the science-fiction magazine. Liverpool science fiction texts and studies. Liverpool: Liverpool University Press. pp.99–100. ISBN978-0-85323-855-3.