The 45-year-old has joined the Spireites from League Two rivals Accrington Stanley.
"I'm delighted to be the new Chesterfield manager," Cook told the club's official website. "It's a fantastic club with a great infrastructure and I'm really looking forward to the challenge."
Cook will take charge of the side for the first time when they host Barnet at the Proact Stadium on Saturday.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Notts County | 6 | 4 | 2 | 0 | 14 | 6 | 8 | 14 |
| 2 | Gillingham | 6 | 4 | 1 | 1 | 9 | 2 | 7 | 13 |
| 3 | BarrowBarrow | 6 | 4 | 1 | 1 | 9 | 3 | 6 | 13 |
| 4 | AFC Wimbledon | 5 | 4 | 0 | 1 | 9 | 4 | 5 | 12 |
| 5 | Walsall | 6 | 4 | 0 | 2 | 9 | 4 | 5 | 12 |
| 6 | Doncaster RoversDoncaster | 6 | 4 | 0 | 2 | 10 | 8 | 2 | 12 |
| 7 | Bradford CityBradford | 6 | 3 | 1 | 2 | 9 | 7 | 2 | 10 |
| 8 | Port Vale | 6 | 3 | 1 | 2 | 9 | 8 | 1 | 10 |
| 9 | Crewe AlexandraCrewe | 6 | 3 | 1 | 2 | 4 | 7 | -3 | 10 |
| 10 | Newport CountyNewport | 6 | 3 | 0 | 3 | 10 | 13 | -3 | 9 |
| 11 | Chesterfield | 6 | 2 | 2 | 2 | 9 | 5 | 4 | 8 |
| 12 | Fleetwood TownFleetwood | 5 | 2 | 2 | 1 | 6 | 5 | 1 | 8 |
| 13 | Salford City | 5 | 2 | 2 | 1 | 4 | 4 | 0 | 8 |
| 14 | Tranmere RoversTranmere | 5 | 2 | 2 | 1 | 3 | 4 | -1 | 8 |
| 15 | Bromley | 6 | 2 | 1 | 3 | 9 | 10 | -1 | 7 |
| 16 | Harrogate TownHarrogate | 6 | 2 | 1 | 3 | 6 | 7 | -1 | 7 |
| 17 | Colchester UnitedColchester | 6 | 1 | 3 | 2 | 9 | 10 | -1 | 6 |
| 18 | Swindon TownSwindon | 6 | 1 | 3 | 2 | 7 | 8 | -1 | 6 |
| 19 | Cheltenham TownCheltenham | 6 | 2 | 0 | 4 | 8 | 10 | -2 | 6 |
| 20 | MK Dons | 6 | 2 | 0 | 4 | 5 | 8 | -3 | 6 |
| 21 | Grimsby Town | 6 | 2 | 0 | 4 | 8 | 12 | -4 | 6 |
| 22 | Carlisle UnitedCarlisle | 6 | 1 | 0 | 5 | 6 | 14 | -8 | 3 |
| 23 | Accrington StanleyAccrington | 6 | 0 | 2 | 4 | 6 | 14 | -8 | 2 |
| 24 | Morecambe | 6 | 0 | 1 | 5 | 3 | 8 | -5 | 1 |
| > League Two Full Table | |||||||||
