The two Popular Library Canadian editions are John Erskine's The Private Life of Helen of Troy and Anita Loo's Gentlemen Prefer Blondes, published in 1948 and 1950 respectively. Both are published by Montreal's Better Publications of Canada Ltd. Both books state printed in Canada but in this case the covers are American printed as stated, identical to the US editions.
The two covers are among the most recognizable vintage paperback covers published. Gentlemen Prefer Blondes is signed by Earle Bergey. The Private Life of Helen of Troy is not signed and has been attributed to Bergey as well as Rudolph Berlarski. Based on the evidence Bergey seems to be the artist.
Popular Library 147
Popular Library 221