Preston boss Darren Ferguson has praised striker Jon Parkin's form.The 28-year-old has scored 12 goals this season, including two in the victory over Cardiff City on Saturday and four in the last five games. [LNB]"He's technically one of the best players at the club," Ferguson told BBC Radio Lancashire. [LNB]"He knows he's in a good run of form and looks a real goal threat. It's important we keep him fresh because we've a lot of games coming up." [LNB]Parkin initially joined Preston on loan from Stoke in August 2008. [LNB]The deal was made permanent four days later, although it took him 16 games before scoring his first goal for the club in the 1-0 victory over Doncaster. [LNB][LNB] He's full of life and you need people like that who keep the spirits high Preston striker Chris Sedgwick He has gone on to score 12 goals this season, including a hat-trick in the 7-0 FA Cup third round win over Colchester in January. [LNB]And team-mate Chris Sedgwick believes Parkin's importance to North End is often underestimated. [LNB]"Jon's always done a good job for us and at the moment the goals are going in for him," he said. [LNB]"People tend to look at his size and think he's just a battering ram but he brings other players into the game with his touches. [LNB]"When Alan Irvine [former Preston manager] brought him in he said it was because of what he can do with his feet. [LNB]"He's a great lad to have in the dressing room. He's full of life and you need people like that who keep the spirits high and a lot of lads look up to him."