While God Can't deals specifically with the problem of evil - why evil exists in a world where God also exists - Open and Relational Theology addresses the whole of faith more broadly. It comes across as an evangelistic tome, of sorts - not one in which Oord is attempting to covert traditionally theological Christians to a new way of looking at God and the world, but one in which he's attempting to provide a path to faith for people who may be struggling or have given up entirely on a Christian world view.
It is, as the subtitle explains, a mere introduction - probably more basic and less deep than even God Can't and certainly a good entry point for those looking to explore different ways of answering religion's big questions. If you're already familiar with Oord's writings or those of other Open or Relational thinkers, Open and Relational Theology probably shouldn't be a high priority on your "to read" list - but if you, like me and many others, struggle to explain these unique and different approached to theology to other people, it may be a book you should buy multiple copies of to keep on hand and pass out.
Oord provides discussion questions at the end of each chapter, and links to accompanying videos, as well as an extensive list of further reading resources, all of which are great starting points for additional exploration. I'm not really the intended audience for a book like Open and Relational Theology, but I'm really glad that one of our best thinkers is dedicating so much time and effort to writing books accessible to everyday people.
*Full disclosure: I was given a free copy of in exchange for this review - although no preconditions were placed upon said review.