The Theory test is taken at a local test centre (not necessarily the centre at which you would take your practical test) using a touch screen computer to conduct the exam and is in two parts. It can be conducted in many different languages and provision can be made for people with dyslexia or learning difficulties.
The first part is a multiple-choice test of 35 questions out of which you must get 30 correct. The second part is a hazed perception test which presents 14 brief video snippets in which you must try to identify 15 potential hazards (one video will have two hazards) and from which you must achieve a score of 44 out of a possible 75; the sooner you recognise the hazard the higher will be your point score. You must pass your Theory test before you can apply to sit your Practical test but you do not need to pass your Theory test before you start learning to drive with an instructor.
There are many generic books, manuals and aids available online and from good bookshops to help candidates prepare for the theory exam. The best of the online resources will be more likely to be in a position to changes in test requirements and the interactivity that is available from the better Internet Theory-support sites truly reflects the look and feel of the actual test itself – something even the best books and manuals cannot emulate. And if you have a particular difficulty, you can always speak to your instructor for personal advice.