From the Depths : Silver / Mur Lafferty
The Lion, the Witch, and the Wardrobe / C.S. Lewis
Prince Caspian / C.S. Lewis
What Doesn't Kill Us / Scott Carney
The Alto Wore Tweed / Mark Schweizer
The Baritone Wore Chiffon / Mark Schweizer
Batgirl. Vol. 1: Batgirl of Burnside / Cameron Stewart
The Voyage of the Dawn Treader / C.S. Lewis
The Silver Chair / C.S. Lewis
Manalive / G.K. Chesterton
Palimpsest / Monte Cooke
The Horse and His Boy / C.S. Lewis
Easy Weight Loss / Anthony Arvanitakis
The Tenor Wore Tapshoes / Mark Schweizer
Superman: The Unauthorized Biography / Glen Weldon
Batgirl. Vol. 2: Family Business / Cameron Stewart
The Magician's Nephew / C.S. Lewis
How to Never Skip your Workout Again: (and get in Shape permanently) / Anthony Arvanitakis
The Last Battle / C.S. Lewis
Magic : A fantastic comedy in a prelude and three acts / G.K. Chesterton
Joe Gould's Secret / Joseph Mitchell

I read through the Chronicles of Narnia, but before each book, I read the corresponding chapter in Planet Narnia. It was quite an experience.

Joe Gould's Secret was the inspiration behind the Blackwell series of games.

The Mark Schweizer books are simply hilarious, doubly so if you are a musician.

That's interesting. Never realized there is a book behind.

And that's even more interesting. Presence of C.S. Lewis and G.K. Chesterton on your list suggests good taste, sir! ;) Unfortunately there seems to be no Mark Schweizer books translated into Polish...