For a couple of weeks just before Advent there were no books to be had. Eerdmans rushed a second printing (or whatever they are calling it these days). The very best place to get Advent now is at https://www.heartsandmindsbooks.com/ where you will find a warm welcome, a good discount, and speedy shipping. Advent is upon us, and it is not a long season, so move fast on this if copies are needed. The book is already being read and taught in England and Canada as well as the United States.