“It’s Just a Penny”  is a guide to coin collecting, specifically focusing on Lincoln cents, that incorporates spiritual and metaphysical elements. The book details techniques for identifying and grading coins, building collections, and even using coins for meditation and spiritual practices. It also explores the potential for profit through coin trading. 

“Secrets of the State Quarters”  similarly focuses on coin collecting but centers around state, national park, and America the Beautiful quarters. This text emphasizes identifying error coins for profit, creating coin-based jewelry and games, and using the process for spiritual growth. Both sources promote the author’s unique “Coinology” approach, combining coin collecting with spiritual practices and business opportunities