Smoke free home. “Uncle Eric BK.: Whatever Happened to Penny Candy?” is a trade paperback study guide authored by Richard J. Maybury. Published in 2015 by Bluestocking Press, this book offers a fast, clear, and fun explanation of economics concepts suitable for high school and elementary school students. The book covers the subject of business and economics in a general sense, making it a valuable resource for those looking to enhance their career, business, or investment knowledge. With 168 pages, this book provides a comprehensive overview of economic principles in an accessible and engaging manner.