Typically, the shelf life of a category book is approximately one month in brick & mortar stores, but you can still find them in eBook form online! You can click on the cover of any book on this site to take you to a handy ordering pane with links to lots of online stores. If I know about a link, I’ll post it there. Here are the ordering panes for Coming UndoneBeyond His Control, and Risking It All.