To help you avoid the most common pitfalls here is a list of the top ten reasons why people fail*.

1. Observation at junctions - ineffective observation and judgement
2. Reverse parking - ineffective observation or a lack of accuracy
3. Use of mirrors - not checking or not acting on the information
4. Reversing around a corner - ineffective observation or a lack of accuracy
5. Incorrect use of signals - not canceling or giving misleading signals
6. Moving away safely - ineffective observation
7. Incorrect positioning on the road - at roundabouts or on bends
8. Lack of steering control - steering too early or leaving it too late
9. Incorrect positioning to turn right - at junctions and in one way streets
10. Inappropriate speed - traveling too slowly or being hesitant 

* Top ten reasons based on twelve months to January 2004