Boy2001 has gone through almost all of the Kumon line. They’ve been fun, sometimes challenging but interesting and most of all educational. Now that I’m looking for more workbooks for girl2004 I’m getting sticker shock! I guess that’s why I’ve been hanging out at the dollar store so much, they’ve got some great workbooks there for just a $1. So the short of it is, I love the Kumon line but they are a bit pricey at $7 each!