Which book have you read more than any other?
tbh, the Deposited Book. I have used it for my daily prayer since before I was ordained. This current edition is new since my last one fell apart (literally!). I have tried other books but I always come back to this one. It has everything I need in one book!
But also Fear and Trembling. And The Metamorphosis. And The Confessions. Also, I Am Dynamite!. And maybe Beyond Good and Evil.
And also the book I am currently obsessed with Monasticism: The All-embracing Gift of the Holy Spirit by Archimandrite Zacharias Zacharou. I only have an ebook copy. It is an impressive book! (Also, by the same author, Hesychasm: The Bedewing Furnace of the Heart.)
I could go on. Anyway …
a fool and his prayer book 