Mediate.com is posting ODR Theory and Practice online, one chapter per week, until the entire book has been made available. The link below will take you to the post for chapter 2, the ODR and Theory chapter that I co-wrote with Leah Wing. To see the other postings, scroll up or down on the blog scroll located on the home page of Mediate.com.
Here’s the link to the theory chapter: ODR and Theory.