hmm... dessert island.. [\Homer mode]
Aren't they called 'deserted islands' in english? -not that I'm an expert-
To such an isle, I'd take just enough paper and ink to write various farewells to my beloved ones.
Most of these aren't particularly supportive for stranded people and I cannot imagine myself idly reading while gaping at the horizon, throat like a cactus.
If the scenario granted a romantic island, water-rich, populated with dumb, tasty dodos and coccnut groves, then - yes, give me two survival books (MATA DEAODO - the art of strangling extinct, flightless birds; DOODOO - how to make fire from all kinds of mythical dung) and the biggest, heaviest, most ridiculously illustrated bible, Jehovah's Witnesses edition.
I hear toilet paper is damn near impossible to obtain on remote islands.