Written under the Ludlum brand by James H. Written under the Ludlum brand by Patrick Larkin Written under the Ludlum brand by Eric Van Lustbader Written under the Ludlum brand by Gayle Lynds Works by other authors based on the author's characters Title Written under the pen-name Michael Shepherd Written under the pen-name Jonathan Ryder 2 Works by other authors based on the author's characters.

The third novel in the Treadstone series, The Treadstone Transgression, is scheduled for release in April 2022 and the seventeenth novel in the Jason Bourne series, The Bourne Sacrifice is scheduled for July 2022. The latest book to be published is The Bourne Treachery by Brian Freeman, the sixteenth novel in the Jason Bourne series. Putnam's Sons, taking over from Grand Central Publishing who held the rights from 2007 to 2017. Since 2019, publishing rights in the United States have been held by G.

Following Ludlum's death, his estate has continued to publish novels under his name with ten authors having written a combined twenty-seven novels under the Ludlum brand, a trademark inscription of 'Robert Ludlum's' on every book (e.g. Ludlum also created the Covert-One series, overseeing the first three novels with Gayle Lynds and Philip Shelby before his death. Of his twenty-seven novels, two were originally published under the pseudonym of Jonathan Ryder and another under the pseudonym of Michael Shepherd. Robert Ludlum (1927вЂ“2001) was an American author of twenty-seven novels between 19, the last being issued five years after his death.

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