Shakes has signed a deal at Brentford while Booker has departed

The Trinidad & Tobago international, 22, who was released by Swindon in May, has been training with the Bees since the summer.

But fellow winger Paul Brooker, 30, has left the Bees after his contract was cancelled by mutual consent.

Also leaving Griffin Park is goalkeeper Clark Masters, 20, who has joined Welling United on a month's loan.