Tess Gerritsen has written 11 books about Boston detective Jane Rizzoli and her partnership with medical examiner Dr. Maura Isles, as of December 2014. The duo work together to solve murders. The books were developed into a one-hour television show, "Rizzoli & Isles," which premiered on TNT in 2010 and stars Jane Harmon as Rizzoli and Sasha Alexander as Dr. Isles.
Jane Rizzoli first appears in Gerritsen's book "The Surgeon," published in 2001. She is a stubborn, independent tomboy from a close-knit Italian-American family. Dr. Maura Isles is first introduced in "The Apprentice," published in 2002. She is the brilliant daughter of a wealthy family, and she is level-headed and factual. Although Rizzoli and Dr. Isles aren't technically partners, they work together to solve cases.
Other characters who appear in the books include detectives Vince Korsak and Barry Frost, each of whom works as Rizzoli's partner at one time. These characters also appear in the television series based on the books. Two other detectives, Thomas Moore and Darren Crowe, appear in the book series but not in the television series.
While the characters of Rizzoli and Isles work well together in the book series, they are portrayed as best friends in the television series, as well.