Nan Barber is the coauthor of two titles in the Missing Manual series and served as a series editor for over 10 years. She is currently an Associate Editor at O'Reilly with a focus on titles on programming and IoT.
Tonya Engst is best known for her work on TidBITS, a free email and Web publication covering the Macintosh Internet community, which she co-founded in 1990. Since then, Tonya has written several books about Microsoft Word, and perhaps the first book about making Web pages using a Macintosh. She has also sold Macintosh computers, and she has worked for Microsoft first doing product support and, much later, editing the Office Web site. She has also written extensively for print magazines such as Macworld and NetProfessional. Tonya works from her home office in Ithaca, New York. Her husband, Adam, works just across the hall while her son, Tristan, hangs out down the street at day care when he isn't home "helping" by spreading glitter glue around. You can reach her at firstname.lastname@example.org or visit www.tidbits.com/tonya/.
David Reynolds is the executive editor of MacAddict magazine.