Map lover's book (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
atlas
(Other definitions for atlas that I've seen before include "Geographical book" , "North African mountains - mythical Titan" , "Titan who supported the heavens" , "Mythological Titan (involved with the world of maps?)" , "Titan who bore the sky on his shoulders" .)