I have Harriet's book - it was my first purchase regarding FMQ. I can assure you that some "slow learners" take a lot more time to stop from sewing too fastly or too slowly...then all of a sudden it was like a light switch being turned on and now it just 'happens'. I found out about dissolveable thread for the first time by reading her book and there were lightbulb moments throughout my reading of it. One of the better purchases that I have made.