I was listening to "Legion" on Audible the other day and really enjoyed it. That piqued my curiosity: what are some other good SF books/series, where a main character is a genius?
Some that I have already read are:
Legion, Brandon Sanderson
Agatha H and the Airship City, Foglio
Ender's Shadow, Orson Scott Card
Macroscope, Piers Anthony
Cold as Ice, Charles Sheffield
Vorkosigan series, Lois McMaster Bujold