Before driving on a public road, you will need a valid Provisional Driving Licence. The Driver & Vehicle Licensing Agency (DVLA) application form (Form D1) can be obtained from your local Post Office but you can also apply online from the 'Direct Gov' site
You can apply for your first British provisional driving licence online if you:
Are a resident of Great Britain
Can meet the minimum age requirement
Can meet the minimum eyesight requirement
Are currently not prevented from driving for any reason
Can pay by Mastercard, Visa, Maestro, Electron, Delta or Solo debit or credit card
Have a valid UK passport or another form of identity
Can provide addresses of where you have lived over the last three years
Theory test
The next step is to take the theory test. This is made up of two parts : multiple choice and hazard perception. Both need to be passed for you to get your theory test pass certificate. Only once you have passed this can you apply for a practical driving test.
You can also book the theory test online from the booking section on the same site
Book your practical test
Ok, so you now have your theory test out of the way so when your driving has reached a suitable level, you can look to get your practical test booked. How far in advance you'll need to book varies depending on the number of other learners applying at the same time. You should not just go ahead and book the test before checking that a car will be available first!
New Independent Driving section
October 2010 sees a new 'independent driving' section being introduced as part of the practical test. During this part of the test, you will be required to follow signs to a particular location to see how well you deal without direction from your examiner.
There is now more detailed information on Independent Driving here.