Everton boss David Moyes believes Leighton Baines is a player for now and the future.
Moyes has confirmed that The Toffees had been tracking the England Under 21 international for some time.
The Scottish tactician is looking to utilise Baines at full-back, allowing Joleon Lescott to move to his more favoured central position.
"We are pleased to have him," said Moyes. "It is a signing for now and it is also a signing for the future.
"Leighton is someone that we have been after for a long time and he is someone who will give good competition to our squad.
"We see him as a left-back. We already have Nuno Valente to play there and Joleon Lescott can cover in that position, but we really want him (Lescott) to be a central defender.
"We needed to add to our squad. Leighton is a young player and he fits in with our policy of trying to buy good British players if we can.
"We have been impressed by him and the reports that we have had about him over the past 12 months have been good."