Complex sentence: A Jewish Mother's Diary is Shapiro's record of her participation in their parenting workshops, and in any case, all quotes and references to their teachings had been sent to them by Shapiro for pre-publication review and approval.
Split into simpler sentences: A Jewish Mother's Diary is Shapiro's record of her participation in their parenting workshops,. They said that all quotes and references to their teachings had been sent to them by Shapiro for pre-publication review and approval.