help my hydrometer reading
 

not very good with numbers and need help making sense of my hydrometer reading please. My reading ses 1.020.

well not sure what you are asking that could be a finish gravity of a big beer, what did your Hydrometer say when you started

This is the first reading I have done, and my first time brewing. Yes I'm testing gravity and my beer has been fermenting for 10 days.

What is a big beer?

What ia a big beer please?

Your gravity reading doesn't do you much good if you don't take a starting gravity reading. It's possible to get a decent estimate of the starting gravity if you know your volume rather precisely and you know how much extract you used, but you should take a gravity reading before pitching the yeast. If you did all-grain (probably not, since it was your first beer), then there's no telling what your original ravity was.

A big beer is a beer that is high in alcohol (e.g. a barleywine).

You have to take a specific gravity reading before pitching ur yeast ( this is OG, original gravity) for beer it will be around 1.040 and then take one at the end of your fermentation and this will be around 1.005 (FG, final gravity) for a lager type beer but for a full bodied beer these values are different, to work out the ABV you do this calculation:
(OG-FG)/7.46 +0.5= ABV
Example
(1040-1005)/7.46 +0.5= 5.2%

Ok bit lost now is it safe for me to bottle or should i wait a couple of days and then do another reading? Im using the youngs bitter 1.5kg beer kit.

If the reading is the same three days in a row you should be fine to bottle