A guide to Dwemer Constructs
Herbane was an adventurer and author who traveled across Skyrim, searching for the most dangerous of creatures and exploring the province. In his writings he mentions his continued search for a challenge worthy of story and ends each book with a boastful statement that he has yet to encounter anything that would make him tremble.
Reading by Galev (@galev_ph)
Can be bought from Urag gro-Shub in The Arcanaeum.
In a random bookcase or shelf in Castle Volkihar. (Dawnguard DLC required)