Sri Advaita Prakasa by Isana Nagara (English)

Sri Advaita Prakasa" is a biographical text by Isana Nagara that narrates the life and pastimes of the Gaudiya Vaishnava saint, Advaita Acharya, a companion of Chaitanya Mahaprabhu. 
Here's a more detailed explanation:
Author:
The text is written by Isana Nagara (also spelled as Ishana Nagara). 
Subject:
It focuses on the life and activities (pastimes) of Advaita Acharya (also spelled as Advaita Ācārya), a prominent figure in the Gaudiya Vaishnava tradition, known as a companion of Chaitanya Mahaprabhu, the founder of the Gaudiya Vaishnava movement. 
Content:
The book details Advaita Acharya's birth, his early life, his travels, his devotion to Lord Krishna, and his teachings. 
Significance:
"Sri Advaita Prakasa" is considered an important text for Gaudiya Vaishnava devotees, providing insights into the life and teachings of Advaita Acharya. 
Other Details:
The text mentions that Advaita Acharya was born in 1493, seven years younger than Chaitanya Mahaprabhu. 
It also mentions that Acyutānanda, one of Advaita Acharya's sons, studied in Mahaprabhu's school. 
The book is available in English and is published by Rasbihari Lal & Sons. 
The book details the auspicious seventh day of the waxing moon in the month of Magha (January-February) as the day of Advaita Prabhu's birth.