M.S.S. Asan & Son has contributed a great service to humanity and also published the well- known books, which serve as a guide to common people, Siddha and Ayurvedha medical practitioners and allied medical manufacturers, the name of the books are as follows.

 Siddha vaidyathil sirantha chooranangal. (Best choornams in Siddha)

 Siddha maruthuvathil ezhiya muraigal. (Easy treatments using Siddha)

 Siddhar tharum seeria maruthuvam. (Important treatments in Siddha)

 Munivargal vazhangia muthana marunthungal. (Precious medicines by saints)

 Anubhava vaidya kazhanjiam. (Treasure of traditional medicine)

 Siddha maruthuvathil sirantha lehyangal. (Best lehyams in Siddha)