Why do some of your reissues have different covers and titles?
I’m traditionally published (vs.independently published) so that’s strictly up to the publisher. I have no real say on when or how a book will be reissued. However, when a book is reissued years after the original publication date, it only makes sense to give it a fresh look and title that reflect the current times. It is not meant as a way to dupe readers into buying the same book, but rather it’s a means to let new readers acquire some hard to find copies they may have missed earlier.