BahÃ ` u 'll Ã h wrote many books and letters , and ` Abdu ` l-Bah Ã ( whose name means `` Servant of Glory '' ) also wrote many books and letters which BahÃ ' Ã s see as special . Finally , BahÃ ` u 'll Ã h 's great-grandson Shoghi Effendi wrote lots of books and letters which BahÃ ' Ã s use to better understand the writings of BahÃ ` u 'll Ã h and ` Abdu ` l-Bah Ã . It was first translated into English in 1906 , becoming one of the earliest available books of BahÃ ` u 'll Ã h to the West .