Don't put things in that will stink when they rot or attract rats or foxes. No cooked meat or cooked vegetables. No
glass or metal or plastic. No dead animals or dog poo. No diseased plants. No hardwood or thick sticks.
You can ...
Make friends with someone who already has a successful composting bin for ideas and guidance on what works and what
Its better to talk to an experienced composter then to just read about it!