Lee Child is one of the world’s leading thriller writers. He was born in Coventry, raised in Birmingham, and now lives in New York. It is said one of his novels featuring his hero Jack Reacher is sold somewhere in the world every nine seconds. His books consistently achieve the number-one slot on bestseller lists around the world and have sold over one hundred million copies. Two blockbusting Jack Reacher movies have been made so far. He is the recipient of many awards, most recently Author of the Year at the 2019 British Book Awards. He was appointed CBE in the 2019 Queen's Birthday Honours.

Photography © Sigrid Estrada

Joseph S. Walker is an Edgar-nominated writer of crime and mystery short fiction. His work has appeared in Alfred Hitchcock's Mystery Magazine, Ellery Queen's Mystery Magazine, Mystery Weekly, The Front Line, Flash, and a number of themed anthologies. He lives in Indiana. Follow him on Twitter (@JSWalkerAuthor) and visit his website at jsw47408.wixsite.com/website.

"Marcum could be today's greatest Sherlockian writer, . . . ." Lee Child - New York Times Bestselling Author

"David Marcum is the reigning monarch of all things Sherlockian . . . ." John Lescroart - New York Times Bestselling Author

"Among the best I must number David Marcum, who, by this point has written more Holmes stories than Doyle himself. Characterized by unflagging imagination and ceaseless ingenuity, along with felicitous prose, these tales continue to provide what we all crave: more Sherlock." - Nicholas Meyer - New York Times Bestselling Author

"Marcum himself again demonstrates his gift for emulating the feel of The Canon . . . ." - Publishers Weekly

David Marcum plays The Game with deadly seriousness. He first discovered Sherlock Holmes in 1975 at the age of ten, and since that time, he has collected, read, and chronologicized literally thousands of traditional Holmes pastiches in the form of novels, short stories, radio and television episodes, movies and scripts, comics, fan-fiction, and unpublished manuscripts.

He has edited over sixty books, most Sherlockian-related anthologies, and is the author of nearly 90 Sherlockian pastiches (so far), some published in anthologies and others collected in his own books, "The Papers of Sherlock Holmes", "Sherlock Holmes and A Quantity of Debt", and "Sherlock Holmes – Tangled Skeins". He has edited over 800 Holmes pastiches and over sixty books, including several dozen traditional Sherlockian anthologies, including the ongoing series "The MX Book of New Sherlock Holmes Stories", which he created in 2015. This collection is now up to 30 volumes, with several more in preparation.

He was responsible for bringing back August Derleth’s Solar Pons for a new generation, first with his collection of authorized Pons stories, "The Papers of Solar Pons", and then by editing the reissued authorized versions of the original Pons books. He is now doing the same for the adventures of Dr. Thorndyke.

He has contributed numerous essays to various publications, and is a member of a number of Sherlockian groups and Scions. He is a licensed Civil Engineer, living in Tennessee with his wife and son. His irregular Sherlockian blog, "A Seventeen Step Program", addresses various topics related to his favorite book friends (as his son used to call them when he was small), and can be found at http://17stepprogram.blogspot.com/

Since the age of nineteen, he has worn a deerstalker as his regular-and-only hat from autumn to spring, and often summer as well. In 2013, he and his deerstalker were finally able make his first trip-of-a-lifetime Holmes Pilgrimage to England, with return Pilgrimages in 2015 and 2016, where you may have spotted him. If you ever run into him and his deerstalker out and about, feel free to say hello!