Diana G. Gallagher was an American author who wrote books for children and young adults. She also wrote the space opera The Alien Dark (1990), but was best known for her tie-in work for television properties including Buffy the Vampire Slayer, Angel, Sabrina the Teenage Witch, Charmed, Star Trek and The Secret World of Alex Mack, among others. She was also a prolific filk creator, winning Pegasus Awards in 1986 and ’94. Gallagher won a Hugo Award for Best Fan Artist in 1988 under the name Diana Gallagher Wu. She sometimes also wrote under the name Diana Burke. Born in 1946, in Paterson, New Jersey, she lived in Florida with her husband, the writer Martin R. Burke, who predeceased her in 2011. Gallagher was married four times; her third marriage was to author William F. Wu (divorced 1990). Gallagher died December 2, 2021 of chronic obstructive pulmonary disease at 75 years of age.

First I must appologize to my family for being the kid who always asked "Why?" But that one word asked many times led me to science and writing—especially in the physical sciences. And all of that led me to have quite an wide range of other writing topics—from weather in Antarctica to the many facets of Forensic Science. Yes, I've always been "the geek next door"... and with more than three dozen books to my credit (mostly on science), no one questions my geekiness anymore! The latest book is from Visible Ink Press—The Handy Forensic Science Answer Book. Thomas Svarney is my co-author, and is one heck of a researcher. (He also has a science background, so we can discuss the mechanics of the climate without scratching our heads in puzzlement...Well, within reason!) The book was interesting to put together and we learned a great deal about forensics. It was especially fun since the subject includes so many different sciences.