Thomas A Kempis 
The Imitation of Christ [EPUB ebook] 

The Imitation of Christ is one of the best known Christian books on devotion. Through its realistic delineation of the complexities of human existence, and in its soul-building optimism about the benefits of aspiring to a Christ-shaped life,
The Imitation of Christ clearly deserves the accolade of 'Spiritual Classic.’ Although written early in the fifteenth century, the many short meditations that comprise this work remain strikingly fresh and relevant for modern readers.
'Religion’s second-best seller.’