This book is very poorly edited; sentences missing object and verbs are common as are typos and spelling mistakes from thoughtless spell-checking (pendent/pendant, for example).
I may have bought an advance reader's copy and it should have been advertised as such. If not the publisher needs quality control.
Will finish the book and then send it back to Yale for a refund.
Content is good and wide ranging but lacks experiential practice except in fiddling and, in discussing this subject, that is essential. Becomes little more than academic twittering.