Charing Cross Road is a street in central London running immediately north of St Martin-in-the-Fields to St Giles Circus (the intersection with Oxford Street) and then becomes Tottenham Court Road. It is so called because it leads from the north in the direction of Charing Cross at the south side of Trafalgar Square, which it connects via St Martin's Place and the motorised east side of the square.
Foyles Bookshop is on Charing Cross Road.
More information on the Wikipedia page [1]