The list includes more unusual publications, such as The Pocket Purity Cook Book and Livre de cuisine Purity: petit format, which featured Purity Flour Mills publications in a smaller size.
#71, titled Bouquet Knitter's Guide, is another early example of Harlequin publishing a non-romance title under their Harlequin Romance brand.
Harlequin #162, titled Health, Sex And Birth Control by Percy E. Ryberg, is another example of a Harlequin book that is not a novel, but is, instead, a woman's health book.
#186, titled Why Be A Sucker?, is a book for investment in Canada.
Gina, by George Albert Glay, was released three times by Harlequin as #19, #112, and #287 in the series.