enopi is pretty good. especially critical thinking math!!! My son is 3rd grade. He had studied Kumon for 2 years. But he started feeling boring.but enopi books are colorful and has teaching tools like blocks, cubes,etc. And enopi has Critical thinking math.Yes, only enopi..I was impressed. My son enjoys enopi math very much. Now I am considering enopi reading..I am pretty sure that enopi reading is much better than Kumon. But I am waiting for my son's answer..he doesn't like a reading..like a wrting..oh my..just in case, I strongly recommend enopi..