"The Báb: The Herald of the Day of Days" by H. M. Balyuzi is a late 20th-century historical narrative about the life of Siyyid `Alí-Muḥammad, the Báb, a key figure in the Baháʼí Faith. It starts with historical events, such as the independence of the American colonies and the French Revolution, to set the scene. The story follows truth-seekers, led by Siyyid Káẓim, on a search for the "Lord of the Age", eventually leading them to Mullá Ḥusayn and then to the Báb in Shíráz. The book explores the challenges, the society during that period, and the declaration of the Báb, as well as the impact on his growing number of followers. It establishes the urgency and socio-political situation necessary to comprehend the later life and instructions of the Báb.

The Báb: The Herald of the Day of Days
By H. M. Balyuzi
Amidst global upheaval, a spiritual quest for truth unveils the herald of a new religious order.
Summary
About the AuthorHasan M. Balyuzi was a prominent Iranian member of the Baháʼí Faith. He served in administrative institutions of the religion for decades, worked for the BBC, and was a prolific writer. He produced innumerable articles and a series of scholarly books on Muhammad and the central figures of the Bahá'í dispensation: the Báb, Bahá'u'lláh and ʻAbdu'l-Bahá. His consecration to serving the Faith, and his deep spirituality led to his being named a Hand of the Cause in 1957. He established a trust and a library for Bahá'í research and donated his works to it. The library contains more than 10 thousand items and continues to grow.
Hasan M. Balyuzi was a prominent Iranian member of the Baháʼí Faith. He served in administrative institutions of the religion for decades, worked for the BBC, and was a prolific writer. He produced innumerable articles and a series of scholarly books on Muhammad and the central figures of the Bahá'í dispensation: the Báb, Bahá'u'lláh and ʻAbdu'l-Bahá. His consecration to serving the Faith, and his deep spirituality led to his being named a Hand of the Cause in 1957. He established a trust and a library for Bahá'í research and donated his works to it. The library contains more than 10 thousand items and continues to grow.