You are crash landed on a deserted island, and can only choose 5 things to survive

If you actually want a good survival book with lots of information check out the SAS Survival Handbook by John Wiseman. I've not read the whole thing as certain sections can get boring and arent necessarily meant to be memorized, but there is a lot of useful info there.

The book "Physician's Desk Reference." Hollowed out. Inside, waterproof matches, iodine tablets, beet seeds, NASA blanket, and, in case I get bored, "Harry Potter and the Sorcerer's Stone." No, "Harry Potter and the Prisoner of Azkaban."

You're starting with the third harry potter book, also what if you just finish and really want the next one?

My five things would be : 1-A Machete 2-Hammock 3-Fishing Net 4-Signal Mirror 5-Water distiller

Mirror/magnifying glass
Blade
Is a water purifying system like a life straw or a distillation system cheating? lol
heavy cord
heavy duty tarp

LOL can I choose
1) A new plane
2) A pilot
3) Gas to run the plane
4) Food of some sort (doesn't matter, we won't stay on the island)
5) Water

1) A plane
2) Fuel
3) A book that can teach me how to use the plane
4) Don't need this
5) Don't need this

Water purification device. Beetroot or avocado seeds. Flint and Steel. Cloths. And machete

5 things to survive?

1) A yacht
2) Fuel for the yacht
3) Food
4) An entertainment console
5) GTA V for the entertainment console

knife, some sort of shield or piece of something to use as a shield or a roof for shelter, bottle, rope and some fabric