This is a growth strategy I hadn't thought of. Thank you for the idea.

Writing book reviews on the Medium publication Free Amazon Reviews for Your Featured Book may also be very good growth strategy. Medium authors with featured books list their books on this publication, and Medium readers write reviews and post them on Amazon and in the publication. We have about 35 books listed, with more included almost every day, and we're just beginning to review books. Please check us out.

Walter, your book is already listed. Thanks for doing that.