What are the main books of the Baha’i Faith?

Foundation Works: These books are often considered the most important books in the Baha’i Faith. They explain some of the basics tenets, principles and laws of the Baha’i Faith

Book and Author Brief Description
The Book of Certitude (Kitab-i-Iqan)
by Baha’u’llah
This book, by the Founder of the Baha’i Faith, was originally a response to a holy man who wanted to know how Baha’u’llah could claim to fulfill prophesies of the world’s religions.  Baha’is consider it to be a foundation work explaining Baha’i theology.
The Hidden Words by Baha’u’llah These are the daily life teachings of the Baha’i Faith. It is a very short book, but considered a masterpiece of spiritual insight and wisdom. Each short passage in it has given Baha’is a lifetime of content for meditation.
Some Answered Questions by Abdu’l-Baha The Son of the Founder of the Baha’i Faith was posed many of the most challenging questions that humanity has ever been faced with: from the purpose of life and many philosophical dilemmas, to questions about the reality of God and His Manifestations, to many challenging Christian theological controversies. Abdu’l-Baha always used simple and eloquent language that made even the most daunting subject easy for everyone to understand.