N.B. The 3rd map carries on from a point slightly before the end of the second one - it starts on the one-way street which comes after Old Street roundabout. It should be fairly obvious where you have to turn right (towards Liverpool Street) as a railway bridge crosses the road about 10 feet before the traffic-lights, and on the bridge are signs showing the million-or-so places which you can get to by turning left, right or straight on - for each direction there is a green sign above, showing major routes (A10 to Cambridge, A11 to the City etc.) and a white sign showing local routes (Hackney, Bethnal Green, etc.)