I purchased the entire series of these books and they are fabulous. My 7 year old absolutely loves these books and has developed an excellent understanding about economics, government, entrepreneurship, respect, responsibility, generosity and compassion for others. These books lay an excellent foundation for our children to build on and help them understand how a healthy society should function. My 5 year old enjoys these books as well but I'm sure will absorb more with future readings. The stories are entertaining and enjoyable to read.