I think you may be asking for a map of the system. That is available from any staffed Underground station. It should be used in conjunction with the London Overground and National Rail Systems as these cover the many parts of London not served by the Underground. You can also download maps from the TFL site

www.tfl.gov.uk

www.nationalrail.co.uk

www.lorol.co.uk

You are not permitted to know the infrastructrure of the London Underground. Only employees of London Underground are permitted to know that, since the Underground became a terrorist target.

Do you want the Police knocking down your door? Very stupid to ask such a question

at this time

I would put this question in google