Which specific books did Sai Baba emphasize for daily reading in Shirdi, and how were they regarded?

Sai Baba placed great importance on the daily reading of two main books: the Jnaneshwari and the Nath Bhagawat. Chapter 18 describes the Jnaneshwari by its other name, Bhavartha Deepika, which is a commentary on the Gita. The other key text is the Nath Bhagawat, specifically the beautiful eleventh Skandha, which is referred to as Nath’s platform for the highest spiritual goal. The text calls the Nath Bhagawat a "divinely inspired book," noting that the merciful Sainath had it read daily in Shirdi for the salvation of souls, highlighting its profound spiritual value.