Public Knowledge

 is a quest in Fallout 4.

Quick walkthrough
1. Talk to Daisy about work 2. Go to the library 3. Turn in the book 4. Kill all the mutants 5. Return to Daisy

Detailed walkthrough
1. Get the quest by talking to Daisy in Goodneighbor about work, the standard chance to bargain for more money will be available. Daisy will also give you an Overdue book and ask you to return it. 2. Head to Boston Public Library, the entrance you are guided to is locked with an Advanced lock. There's another possible entrance through Copley Station that I have not explored. 3. Once you get inside you will hear, and likely be caught up in, a crossfire between super mutants and the library's security, consisting of Protectrons and turrets. 4. There's a couple of book return terminals, one is right next to the quest marker entrance, turn the overdue book, plus an others you have, over to it, then clear the building, it will require a little exploration to find all the mutants. 5. Return to Daisy for your reward

Journal entries

 * Go to Boston Public Library
 * Return the Overdue book
 * Clear the library of super mutants
 * Return to Daisy