| year of publication | ISBN | author(s) | title |
|---|
| 1996 | 978-0-939656-22-6 | Ralph W. Ritchie | Electric Kiln Handbook (Energy conservation series) |
| 1999 | 978-0-939656-27-1 | Fern J. Ritchie | Handbook of Edible Plants and Weeds, Volume 2 |
| 2000 | 978-0-939656-44-8 | Fern J. Ritchie · Ralph W. Ritchie | Gas Kiln Handbook |
| 1999 | 978-0-939656-45-5 | Ralph W. Ritchie | Understanding, Maintaining, Using BURNERS For Natural Gas, Propane, Oil, Coal, Wood, Exotic Fuels, Second Edition |
| '' | 978-0-939656-47-9 | '' | Gas Kiln Firing (Crafts (Hardcover Ritchie Unlimited)) |
| '' | 978-0-939656-48-6 | '' | Gas Kiln Firing, Volume 2, Practices For The Ceramics Professional, Pottor or Sculptor (Crafts (Hardcover Ritchie Unlimited)) |
| 2000 | 978-0-939656-49-3 | Ralph W. Ritchie · Fern J. Ritchie | The Clay Book: Its Technology, Handling, and Application. As It Was Used At Studios West |