Bishop Auckland-born Cook is a product of Carlisle United's youth system, he rose through the ranks at the Brunton Park club to turn professional in the summer of 2009. He was unable to make the breakthrough for the Cumbrian side and, following a couple of loan spells, would go on to join Barrow permanently in January 2011.
Cook would go on to make around forty first-team appearances for the Bluebirds before joining Grimsby Town in the summer of 2012. Andy would make seventy-seven appearances over the next two seasons with the Mariners before returning to Barrow in 2014, going on to make over forty further appearances.
The striker has spent the last two seasons with Tranmere Rovers, a club where he has scored over fifty goals in eighty-nine appearances, earning plenty of admirers along the way.
Cook, who has agreed a two-year deal at Banks's Stadium, played a major part in the Rovers side which achieved promotion back to the English Football League after defeating Boreham Wood in the National League Play-Off Final just over a week ago.