Complex sentence: Black Lace is an imprint of Virgin Books that specializes in erotica and erotic romance written by female authors specifically for female readers; the imprint does not publish novels written by men partly as a marketing scheme, partly to better appeal to their target demographic.
Split into simpler sentences: Black Lace is an imprint of Virgin Books that specializes in erotica and erotic romance written by female authors specifically for female readers. The imprint does not publish novels written by men partly as a marketing scheme, partly to better appeal to their target demographic.