Books that have influenced and blessed

Earlier today my friend and brother Simon Wade asked me what book, apart from the Bible had I enjoyed or been inluenced by most.
I'm still not sure that I've sorted an answer since at different times God has brought along different books that have changed, challenged, taught, rebuked, excited or stirred me in the Christian life.
But I began to ask and text this question of others. So without naming names here are some of the replies;

Pilgrims Progress - Bunyan
Why Revival Tarries - Ravenhill
Theodoer Apt's commentry on James
Hells best kept secrets - Ray Comfort
Do Right
Foxes book of Christian Martyrs
Streams in the Desert - Cowman
Renewed day by Day - Tozer
Genesis Record - Morris
Channel of Revival - Campbell
The General next to God - Collier
Made Whole
Passing on the Batton - Buchan
Faith Like Pototoes - Buchan
Alone With God - MacArthur
Revival Praying - Ravenhill
Knowledge of The Holy - Tozer
Persuit Of God - Tozer
What Happened To Worship - Tozer
Revolution in World Mission - Yohannan
The Man God Uses - Smith
Living The Cross Centred Life - Mahaney
Counted Righteous In Christ - Piper
Every Man's Battle - Arterburn, Stoeker
Don't Waste Your Life - Piper
Walking in Victory
Disciplines Of A Godly Man - Hughes
A Children's Bible Story Book - Unknown as to which one but as my friend who said this one, had looked at the picture of the Cross as a kid, he realized that it was for him that Jesus died and was saved.

If anyone's interested, for my answer I struggled to find one book but as a young Christian MacArthur's 'You Call Me Lord' was a huge influence. Others that came to mind were Owen's 'Overcoming Sin and Temptation', Piper's biographical books, (infact all Piper's books) , Giglio's 'i am not but i know I AM' and Swindoll's 'Moses: A Man of Sefless Dedication'.