- Get the IAEA Isotope Browser App for your Smartphone. Learn how to use it.

- Read all history articles on https://whatisnuclear.com/reactor_history.html then follow your interests.

- Use Wikipedia to the max!

- Trust no one. Check everything!

- The IAEA has a comprehensive study program. But I wouldn't recommend it as a starting point: https://www.iaea.org/topics/infrastructure-development/e-lea...