Quiet afternoon at the book store looking at an odd book ? well just from the cover you have to ask what is the oddity about anyways hmm. It seems the odd part is just the main characters last name. It's a book written in a series about a guy named Odd and this part is when he went tot live in a monastery so there you have Brother Odd.
It seems that the Odd part reference is just the main characters last name
Original picture taken by @theopinion