The UK unit of currency is pounds sterling, not the Euro. Have a look at these pictures of UK notes and coins to familiarize yourself with the money before your trip.
|UK Money||UK Notes||Fifty Pound Note||Fifty Pound Note 2|
|Twenty Pound Note||Twenty Pound Note 2||Old Twenty Pound Note - Now Withdrawn||Old Twenty Pound Note 2 - Now Withdrawn|
|Ten Pound Note 1||Ten Pound Note 2||Five Pound Note 1||Five Pound Note 2|