[concretecode]

I'd like to see more of this type of thing. When learning a new language, I don't need an introduction to the if statement or while loops, yet in the interests of completeness many programming books include a thorough (and mind-numbing) guide to them. For some readers that's called for, but many of us are stuck reading about concepts we're already comfortable with. I'm concerned that if I don't read everything, I'll miss out of some bizarre quirk of the language, so I'm reluctant to skim, but this gets in the way of what I'm really trying to achieve - using the language to make cool stuff.

Writers of programming language books take note: I'm generally not interested in the tool. Tools are boring. No really, they are. Making cool stuff and solving hard problems is interesting and fun. Get the tool out of the way so I can get things done.

[tptacek]

Agreed. I wrote a couple-page cheat sheet on Objective C, and since I've made a twice-yearly ritual out of forgetting Objective C, it's come in handy. Repeatedly.

[mcav]

If you ever have time or inclination to share it, I could use a good cheat sheet. The closest I have now is "Objective C for C++ programmers", but it's not short enough to be a useful cheat sheet.

[bouncingsoul]

This was meant as an intro, but maybe it works as a quick reference too: http://cocoadevcentral.com/d/learn_objectivec/