ESSAYS
| ESSAY TITLE | PUBLISHED IN | YEAR |
| To My Readers | King Kobold Revived | 1984 |
| About the Author | Her Majesty's Wizard | 1986 |
| Introduction to Gramarye | A Warlock's Blade | 1987 |
| Introduction | The Enchanter Reborn | 1992 |
| Introduction | Mind Out of Time | 2003 |
| Introduction | The Mathematics of Magic: The Enchanter Stories of de Camp and Pratt | 2007 |
 The Mathematics of Magic L. Sprague De Camp  
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