The Series Series, Part 2: Starting a Series
But starting a series is more than establishing characters and setting. You are also establishing style, tone, and any other unifying elements that will be present in subsequent books. When Jim and Kate McMullan published I Stink!, the first book in their wonderful anthropomorphic vehicle series, they didn’t realize they were committing to having an internal “game” within every subsequent story. I Stink! featured a “trash alphabet” in the center of the book, thus necessitating that each subsequent book provide a similar fun element – a maze, a counting game, a “Where’s Waldo?” type puzzle, etc. Olivia, by Ian Falconer, establishes with the first book that there will be legit art represented at least once or twice in each subsequent book, in full color to contrast with the black, white and red illustrations.
But don’t feel bogged down by the details. There are plenty of examples of series that have changed as they developed. Marc Brown’s Arthur series is a case in point – the scratchy, edgy character drawings evolved over the course of the series to become smoother and more widely appealing than their earlier counterparts. The point is simply to be aware that whatever simple rules and styles you establish in Book One will, ideally, extend through and define the balance of the series thereafter.