The former Liverpool midfielder is enjoying one of his finest seasons and says Bruce has helped him recapture his form.
"He is one of the best man manager's I have ever worked with," revealed Shelvey when talking with nufc.co.uk.
"I feel like I am reaping the benefits of that.
"He just says 'if you work hard, your football ability will come through'.
"I just need to keep working hard on the pitch and away from it. If I work my socks off for the team, the rest will come together."