To get to the Poetry Cafe' the nearest Undergrounds are: Covent Garden (Piccadilly Line) / Holborn (Piccadilly and Central lines).
From Covent Garden Underground Station: Turn left out of the tube station onto Long Acre, then cross over at the zebra crossing (towards Marks and Spencer). Turn right and walk along Long Acre. At the end of the street turn left down Endell Street. You will see some trees ahead of you, Betterton Street is the second turning on the right, just before these.
The Poetry Society / The Poetry Café is less than 100 metres down on the left-hand side. It has a dark blue frontage.