To put a plot inside of a plot [duplicate]

I'd like to put a figure of a 2D-plot into a larger 2D-plot (into some white-space), like in the example below:

I don't precesely know how It's done, could anyone help me with this one? Is it with the command Epilog somehow ?

• Thanks, my search wasn't thorough enough I guess.
– Nick
Jan 6 '14 at 17:59

Take a look at Inset:
Plot[Exp[-x], {x, 0, 10}, PlotRange -> All,