I’ve also done a modicum of research for the second half of this series, to try to answer the question of why cleavage was being used to sell a product to women. My coverage of the literature is going to be spotty and incomplete. I feel like I need this kind of disclaimer (read: apology) since I’m a librarian and part of my job is to encourage students to be as thorough as they can when searching for academic resources on a topic. Get more than you need and winnow, I say. Check their bibliographies for further relevant research, I say. Use Web of Science to see newer pieces that cite what you already have, I say.
I say a lot of things.