1 General or introductory materials 1.1 Powerful metaphors,
images Here is a collection of short descriptions, analogies or
metaphors, that illustrate this difficult concept, or an aspect
of it. 1.1.1 Imperative metaphors - “In computing, a
continuation is a representation of the execution state of a
program (for example, the call stack) at a certain point in
time” (Wikipedia's Continuation). - “At its heart, call/ccis
something like the gotoinstruction (or rather, like a label for
a gotoinstruction); but a Grand High Exalted gotoinstruction...
The point about call/ccis that it is not a static (lexical)
gotoinstruction but a dynamic one“ (David Madore's A page about
1.1.2 Functional metaphors - “Continuations represent the future
of a computation, as a function from an intermediate result to
the final result“ (Continuation monad section in Jeff Newbern's
All About Monads) - “The idea behind CPS is to pass around as a
function argument what to do next“ (Yet Another Haskell Tutorial
written by Hal Daume III, 4.