I lead a book club once (Designing Data Intensive Applications)- read a chapter and meet every two weeks. Was a real flop. Attendance remained high, but only one other person actually finished the book.

What was a real slap in the face - maybe a year after that book had concluded, someone told me I should lead another one about this other topic. She had not finished the first book, and she wanted me to regurgitate another to the group?