As per Sri:Vaishnava tradition there are 108 Divya Desams/Temples which are considered to be the most sacred and revered shrines.
This short handy book in English gives the initial information of the 108 Divya De:sams. The information includes name of the Divya De:sam, Mu:lavar, Tha:ya:r, Posture, Uthsavar, Vima:nam, Sung by which A:zhwar. Also includes distance from the main city/town and address/location.