i have to praise the _insanely good_ "LISP From Nothing" book from @AverageDog once more. apart from the fact that on every page i think "i could never think or code that", it is packed with cool info. For example, when you compile scheme to C and you want to have, an instruction pointer of sorts to jump to your functions, how do you do it in a language that doesn't support computed goto without accumulating function calls?

for(k=0;;) switch (k) {
case 0:
k=apply(...); break;
case ...
}