which are available both as e-books and on physical media: Plotner, Tammy; Barbour, Jeff. What's Up 2006: 365 Days of Skywatching (PDF). 2006 [2016-08-19]
Work of Love: Creation as Kenosis editor, with contributors including IanBarbour, Sarah Coakley, George Ellis, Jurgen Moltmann and Keith Ward (SPCK/Eerdmans