| year of publication | ISBN | author(s) | title | 
| 2010 | 978-1-933023-00-7 | Patrick Leonardi | The Ultimate Study Guide For Biology: Key Review Questions and Answers with Explanations (Topics: Origin of Living Things & Chemistry of Life, Structure and Function of the Cell & Energy Pathways, Reproduction and Heredity, Genetics) Volume 1 | 
|   '' | 978-1-933023-01-4 |    '' | The Ultimate Study Guide For Biology: Key Review Questions and Answers with Explanations (Topics: Evolution, Ecology, Kingdom Bacteria, Kingdom Protista, Kingdom Fungi & Viruses, Plant Form and Function) Volume 2 | 
|   '' | 978-1-933023-02-1 |    '' | The Ultimate Study Guide For Biology: Key Review Questions and Answers with Explanations (Topics: Kingdom Animalia, Organization of the Animal Body, Animal Form and Function, Animal Reproduction, Development and Behavior) Volume 3 | 
| 2005 | 978-1-933023-06-9 |    '' | The Ultimate Study Guide for the Registry Examination in Radiography: Key Review Questions and Answers (Topics: Radiographic Procedures: Anatomy, Physiology, Pathology and Positioning, Patient Care & Education) Vol. 3 | 
| 2010 | 978-1-933023-07-6 |    '' | Anatomy and Physiology Study Guide: Key Review Questions and Answers with Explanations (Volume 3: Nerve Tissue, Spinal Nerves & Spinal Cord, Cranial Nerves & Brain, Neural Integrative, Motor & Sensory Systems, Autonomic Nervous System, Special Senses) | 
| 2004 | 978-1-933023-09-0 | Patrick Leonardi | The Ultimate Golf Instruction Guide: Key Techniques for Becoming a Zero Handicap Golfer or Better |