Is there anything else to be done with them other than picking out which perk from each you want or resetting perk trees? Just wondering cause ik they dont weigh anything, i still hate cluttered inventory. Plus i wanted to leave them in my house for my kids to read >:)
To my knowledge after the main quest they're not needed for any further quest. But I've never tried to remove them from my inventory so I wouldn't be surprised if they keep the quest item flag like the Elder Scrolls.