IA is part of it, but the I would say the broader term for the field is "Knowledge Management".

https://en.wikipedia.org/wiki/Knowledge_management

Also related is the field of "Organizational Learning".

https://en.wikipedia.org/wiki/Organizational_learning

It's a huge topic, and would be hard to do justice to in a HN post.

There are a lot of good books on the topic. A few I'd recommend include:

https://www.amazon.com/Handbook-Organizational-Learning-Know...

https://www.amazon.com/Wellsprings-Knowledge-Building-Sustai...

https://www.amazon.com/Winning-Knowledge-Transfer-Michael-En...

https://www.amazon.com/Only-Knew-What-Know-Knowledge/dp/1451...

https://www.amazon.com/New-Edge-Knowledge-Management-Changin...

https://www.amazon.com/Fifth-Discipline-Practice-Learning-Or...