Complex sentence: In 2002, Meier published a book entitled "In Schools We Trust", which included substantial attention to the Mission Hill School and also argued why the current climate of high-stakes testing makes running a school like Mission Hill much more difficult.
Split into simpler sentences: In 2002, Meier's book "In Schools We Trust" included substantial attention to the Mission Hill School. It argued that the current climate of high-stakes testing makes running a school like Mission Hill much more difficult.