Warner Bros. Consumer Products, Warner Bros. Television Group and Fox Broadcasting Company have joined forces with publisher Insight Editions to create a companion book for the Fox series “Fringe,” which was also integrated into the TV show.

On last Friday’s episode of “Fringe” viewers learned that the recurring character Observer September had been keeping a notebook of all his observations; the new book Fringe: September’s Notebook is an exact replica of that notebook.

The book chronicles the main characters' personal stories, elements of the show's mythology and gives insight into the show’s science.

The text, sketches, photos and official documents included in the book have been gathered by the series’ executive producers and production department for an authentic volume that spans all five seasons.

Fringe: September's Notebook is now available at Amazon, Barnes & Noble and other booksellers.

“Fringe” follows an FBI special agent and two scientists who investigate paranormal incidents and has also spawned two six-part comic book series and an alternate reality game.

The fifth and final season of “Fringe” will conclude this Friday.