Reddit mentions of The Mountaineering Handbook: Modern Tools and Techniques That Will Take You to the Top

This book has a great chapter on nutrition. Since reading that I take mostly GU gels and gummies, some with caffeine, which gives a nice boost before a difficult pitch. They are much lighter on the stomach than cliff bars and don't require as much water to digest. I can go about 8-10hrs on those before requiring real food.

Well, without going all super technical (for that pick up The Mountaineering Handbook or this one):

First thing to do is get some rap rings and some webbing and use natural protection. This way you will leave behind only the cheapest of gear.

OR...for serious nut-heads/dirt-baggers only, I present to you: The Texas Rope Trick

Let me see if I can put this more eloquently than @pliers below. Go and buy Neil Gresham's "Climbing Masterclass: Improve your climbing" DVDs 1 & 2. Don't torrent them, they're not wildly expensive, and the guy deserves to get paid for the quality of instruction he puts out there. You won't regret the purchase.

I'd recommend Craig Connally's "The Mountaineering Handbook" in addition to Freedom of the Hills. Neither book is perfect - compare, contrast, ask around your climbing buddies...

https://www.amazon.com/Mountaineering-Handbook-Modern-Tools-Techniques/dp/0071430105

I have this and FOTH. I think FOTH is better and more clear and comprehensive. Honestly, if there is something to learn by reading it's in FOTH. Otherwise I would turn you to youtube, there are tons of lessons on there. Including Jeff Lowe's ice climbing technique. Just search for what you want to know and you will at the very least see it being done.

The Mountaineering Handbook has a good, readable, and practical discussion of mountain weather.