I let y’all know about my plan to read and blog through works by and about C.S. Lewis in 2011 and be mentored by him via his life and writings. The following is the list of what I have on my shelf so far. Much I have read before but most will be entirely new to me. My goal is to read 50 books on or about C.S. Lewis. Ambitious? Yes. Thoroughly exciting? Definitely.
1. Planet Narnia by Michael Ward
9. Letters To An American Lady
13. The Four Loves
14. C.S. Lewis: Images Of His World by Gilbert and Kilby
15. Latin Letters Of C.S. Lewis
I plan on picking up the Space Trilogy, The World’s Last Night, God In the Dock, Pilgrim’s Regress and some others. But what am I missing out on?
Echoes and Stars 
What I Learned in Narnia – Doug Wilson
You simply must read Miracles. I think that is his best bit of apologetics.Off the beaten track a little.An Experiment in Criticism is short and worth the time.If you're reading that much CS Lewis you should get a second-hand copy of C.S.Lewis: A Companion and Guide by Walter Hooper. It is PACKED full of information on each book. It picks up on letters by Lewis on the various books and reviews at the time. Very interesting as a companion.Tim Keller says every preacher should read Studies in Words, although I’ve never read it.Maybe also worth reading a biography of the Inklings. Humphrey Carpenter’s?
Thanks for these recommendations! They have all been added to my list.
The Problem with Pain was helpful; had a hard time getting into The 4 Loves