The component that controls glossary is AC_CharactersInfo. Here you can find variables that store information and function that let you add new information to player’s glossary.
Default values can be changed here:
In dialogue character you have an example of adding both characters and creatures:
Default value looks like this:
The situation is the same for base AI and interactable books.
Interactable book is a good example of adding your own interact logic to an actor. Here we get player’s component and add book information.