Which specific scriptures did Bapusaheb Jog read daily in Shirdi, and how was their significance described?

The texts from Chapter 18 identify two main books that Bapusaheb Jog would read daily with Sai Baba's permission. These were the Jnaneshwari, also known by the name Bhavartha Deepika, which is a commentary on the Gita, and the eleventh Skandha of the Bhagavat, referred to as the Nath Bhagawat. Their significance is described in lofty terms; the Nath Bhagawat is called a 'divinely inspired book' containing the 'loving speech of Nath.' Together, these two texts are presented as the essence of the Bhagavat religion and a platform for attaining the highest spiritual goal, highlighting the profound importance Baba placed on them for the salvation of souls.