Reading gave new manager Veljko Paunovic the perfect start to life in the Championship with an impressive 2-0 win at Derby.
The visitors were stronger and quicker than Derby throughout and could have won by a bigger margin.
In the end, first half goals from in-form striker Lucas Joao and Ovie Ejaria were enough to see off Derby who offered little threat, even when Wayne Rooney was introduced in the second half.
Joao scored a Carabao Cup hat-trick last weekend and he followed his smart finish by setting up Ejaria as well as hitting the woodwork in the second half.
Rooney had not been fit enough to start and watched from the bench as Reading began brightly on a breezy afternoon.
Michael Olise made a threatening run across the face of the Derby box but his pass to Joao was easily cut out and the home side had the first attempt on goal when Jack Marriott's shot was deflected behind in the 11th minute.
Reading should have scored in the 19th minute when Joao's shot from the edge of the area was saved by David Marshall and John Swift put the rebound over from 10 yards.
It was a big chance for the visitors who had been quicker to the ball with Derby limited to shots from distance and Reading made no mistake with their next opportunity in the 40th minute.
After Derby conceded a corner, Olise's low delivery to the near post caught Derby out and Joao reacted quickly to side foot in from six yards.
Joao was involved again as Reading made it two in first half stoppage time, holding up the ball before a clever back heel set up Ejaria who fired across Marshall and inside the far post.
The second half began on a farcical note with substitute Nathan Bryne booked on debut because Derby had not told the fourth official they were bringing him on.
At least Derby had a shot on target with Morgan Whittaker forcing Rafael Cabral into a save but Reading should have scored again when Swift broke clear in the 55th minute but took the ball too close to Marshall.
Joao rattled the crossbar two minutes later and it was no surprise when Rooney was brought on in the 63rd minute.
Despite Rooney's presence, Derby were still struggling to make an impression on Reading who finished the game as they began, in control, and although Marriott did test Cabral in the final seconds, it could not disguise a poor afternoon for the home side.
What the managers said...
Derby's Phillip Cocu: "The result is very disappointing. Everyone is very excited to start again and then you lose the first home game, so it's a big disappointment for everybody. But credit to Reading, the way they played was different to last season. A lot of rotation, good combination game, they really played some very good football and were hard to break down.
"But we really have to look at ourselves. I think the first 35 minutes is something we can't accept, so it's no surprise at half-time when you are 2-0 down. So I was very upset at half-time because, if you don't present yourselves as a team like we can, then we have ourselves to blame."
Reading's Veljko Paunovic: "More than anything, I'm very grateful for the effort and performance of the players. I think we had a fantastic spirit, we respected the plan and were consistent and played good football, especially in the first half.
"We had a tough opponent in front of us which we respected and we played against them like warriors and that's the spirit you want to instil from the beginning. I would say it is just common sense what we are trying to do and then we really work every day. A lot of coaching and teaching were involved in these couple of weeks, we were pretty intense with that."