I have used the Ollie the Elephant booklets with great success.
Yesterday I presented them to a group of people to explain successful applications with a former drug rehab graduate. He struggled so heavily, and I found he was illiterate.
I used the booklets to teach him reading. After that, he was able to study a booklet on personal values, saying, “I can read! I can understand that!”
Then he completed a course in life improvement, and graduated with tremendous success.
Stunning! He turned into a responsible, thriving person in literally two weeks.