A chronological list of author Daniel Silva's books is available on his website, DanielSilvaBooks.com. As of March 2015, Silva has written 15 books in the Gabriel Allon series, two Michael Osbourne novels and one stand-alone spy thriller, "The Unlikely Spy."
On the website, users can click on About Daniel and select FAQs to see a chronological list of books regardless of series. "The Unlikely Spy" was Silva's first book. It was published in 2003. Next came the two Michael Osbourne books. The Gabriel Allon series introduced the art restorer, assassin and spy title character in "The Kill Artist." In 2015, "The English Spy" became the 15th book in that series. The website also includes a link to a printable list of the books in series order.