Deciding to write a series or a standalone book is tough. It's important to take your story idea and weigh the options. I'm going to assume you've already sat back and figured that out, and you want to write a series.
Book series are popular. Readers love to follow their favorite characters through all sorts of adventures. But there's nothing more disappointing than picking up the new book of one of your favorite series and finding the story fell flat. I've abandoned many series because the story faltered and the characters didn't grow.
Here are five tips to help you build a successful book series:
1) Make certain your story idea has enough juice to last through the whole series. If the plot flops after the second or third book, you're going to lose readers. Each book must have a solid story that can stand on its own and interconnect with the previous books. It helps if you're a plotter to plan the series. As a pantser, even I made certain when I was writing TOTEM, I had a solid story idea for each book before I started. Sure, those ideas were as simple as "they will search for the ____ totem in this book," but each one had a purpose in the overall plot.
2) Keep a story bible. Plotters usually have this started before they begin to write the first chapter. I keep notes as I go along. I mark down the basic plot points in each chapter and record character traits. It is also wise if you go back and read the previous books in the series before starting on the next one.
3) Don't limit your fictional world. You want to have room for growth. There will be rules and borders, of course, but a book series needs space to stretch and expand. Your characters might be trapped in a walled city, but there is a whole unknown world out there for you to continue on in if you want to do so.
4) Characters must grow. Characterization is vital to a series. Readers want the heroes they adore and the villains they loathe, but it wouldn't be realistic if the characters stayed the same throughout each book. Time has passed. A person will not be the same today as they were last year or even last month. Some internal issues we struggle with for years, but there will be little changes in attitude, a bit of wisdom gained, and possibly a fashion makeover.
5) Be able to let go. If the overall story arc comes to an end or if your individual story ideas disappear, know when to call it quits. I hate it when I read a series and it's the same plot over and over. "This love triangle has been going on for twenty books. Have the protagonist choose one already!" Sometimes it's tough to let go of characters and worlds we've come to love, but you'll fall in love again. That's one of the wonderful things about being a writer.
Have you written a book series? Do you plan to? What tips do you have to share?