What were the main religious books that Sai Baba encouraged his devotees to read, and why were they so important?

Sai Baba placed great importance on the daily reading of two specific sacred texts: the 'Jnaneshwari,' which is also known as 'Bhavartha Deepika,' and the 'Nath Bhagawat,' which is the eleventh Skandha of the Bhagavat. As detailed in Chapter 18, these were considered divinely inspired books central to the Bhagavat religion. Baba believed that those who performed the reading with faith could attain God instantly. He assigned devotees like Sakharam Hari Jog to conduct daily readings in Shirdi, viewing this practice as a crucial method for the spiritual welfare and salvation of souls, and a way to bestow his grace and instruction upon them.