There is a lot of information about Cat care on the National Cats Protection website.
If you are a new cat owner or if you just want to find out more about your mysterious moggie's behaviour, this page will help you.
You can download cat care leaflets, divided into Essential Guides and Veterinary Guides
which should answer all your cat-related questions. These leaflets are free.
There is also a Frequently Asked Questions page which covers cat health, behaviour, neutering and much more.
But remember if you have any concerns about your cat’s health or behaviour you should contact your vet as soon as possible.