While there are recurring characters and some loose plot threads that weave through the series, each book focuses on a different adventure for Molly Moon. You can jump in at any point and enjoy the story without feeling lost.
However, if you are planning to read the entire series, it might be fun to follow the publication order to see how Molly's skills and character develop over time.
Here is the order of publication:
1. Molly Moon's Incredible Book of Hypnotism
2. Molly Moon's Mysterious Map
3. Molly Moon's Missing Mum
4. Molly Moon's Magnificent Mystery
5. Molly Moon's Marvellous Music
6. Molly Moon's Memory Machine
Have fun reading!