This is volumes 10-11 of Sri Aurobindo’s collected works. Record of Yoga is a diary of Sri Aurobindo’s yoga between 1909and 1927. He kept it fairly regularly from 1912 to 1920, and alsowrote a few entries in 1909, 1911 and 1927. At different times hegave this diary different names. “Record of Yoga” was the most typical and the editors have used it as the general title of the work.