This passage shows what a conscious manipulator Stephen Mitchell is, trying to pretend that Byron Katie doesn't read books, what a joke, what a scam. Just bold-faced BS, right in your face..
Read this thread, and it shows how in the suppressed Byron Katie book, A CRY IN THE DESERT, they talk in detail about how Byron Katie studied A Course In Miracles, and many other programs and methods.
Forum:
"Cults," Sects, and "New Religious Movements"