Is writing multiple series in the same world a good idea? | Book Discussion

Do you remember The Mortal Instruments series, and when Cassandra Clare announced she had A LOT of other books in stock for the Shadowhunter world? Yes, I'm talking about The Infernal Devices (3 books), The Dark Artifices (3 books), The Last Hours (3 books), The Wicked Powers (3 books), to which you'll have to add The Bane Chronicles, Tales of Shadowhunter Academy and a possible graphic novel centred around the Circle.

If her fans were beyond happiness (like I was), Clare received a lot of hate from readers, because they considered she was using the Shadowhunter world like a milk cow, so… Yeah… September 15th, it was announced that Rick Riordan had a new books coming out May 3rd 2016, centred around… Roman demigods. So of course, the discussion starts again, and maybe the drama.

Why writing other books in the same world can be a good thing:

• There is hope for cameos of our old favourite characters. Remember when we had to say goodbye to Percy and Annabeth after all these years? When I heard about Riordan's new project, I fangirled so much, because I'll probably have Reyna (aka one of my favourite characters) in books as a MC. There will also probably be interaction with the Greek Camp… Or not. But I think Riordan won't let go of Percy that easily.
• If there are new books, it's probably because it works. Would authors like Cassandra Clare and Rick Riordan write more books about their worlds if they didn't know if the readers would buy it? Of course not. I'm pretty sure their books will go straight to the New York Times Bestselling List, for WEEKS. If those authors are popular, it's because they were able to create rich worlds, with plenty of rooms for other books.

But it can also be a bad thing:

• At some point, the reader can be tired to see the same old plots (like quests format). If I only had one example to give, it would be Pretty Little Liars, by Sara Shepard. It was supposed to be an eight books series, but there are sixteen books in the series… A little too much, for a lot of people, me included. It was so far-fetched that after discovering who A was (twice, after eight books), there was another one lurking around. Get a life people, are these girls that interesting?
• There is also the money factor *sighs*. A lot of people said Clare was writing books in the same world, because it was easier money to make. Of course, it will encourage readers to buy, because they know the world. I think it's more of a "safe option" for these authors.

However, I want you to remember:

• You can't say an author using the same world multiple times is uncreative, because writing books, by definition, is being creative. I think it's as hard to write a book sets in the same world than creating another one, because the author has to find new ideas and not repeating himself.
• Being an author is a job, so of course you need money from it. If you had an opportunity to earn more money, won't you take it? Think about it for a minute. If you tell me you wouldn't, I'm a little sceptical, because we're humans, never forget that. This job allows them to have a roof, food and money enough not to have to work a part-time job, when a lot of authors have one.

Personally, if it's a book series I loved, I don't mind if the author goes on with this world. I won't ever say no to other books set in Percy's or the Shadowhunter's world, because I love it so much and trust these authors. And anyway, no one forces you to buy more books by these authors, if you choose not to read them, you're free! We all have our opinions on the subject. If I'm ever tired to read about one of the worlds I mention, I will stop to read about it, that's all.

What do you think about it? Let's discuss in the comments.