One of his top ten secret libraries of all time, as shared at the Guardian:
Jonathan Strange & Mr Norell by Susanna ClarkRead about the other entries on the list.
Gilbert Norrell jealously guards his collection of magical books in Susanna Clark’s novel Jonathan Strange & Mr Norrell. Norrell, one of the two magicians who emerge during the Napoleonic Wars to revive English magic, is not the sharing kind. At his house at Hurtfew he has a large hoard of magic books that he has spent many years collecting for his own use. At first he offers to mentor Jonathan Strange, but when he discovers Strange is a more gifted magician, he prefers to lock his books away.
--Marshal Zeringue