Change the cover.
In Illustrator, open the magazine template practice file and click the pink placeholder with the Selection tool. Then choose File > Place and find the PSD file you created in the previous step. Make sure the Link and Replace boxes are checked and click Place.
With the image still selected, hold Shift as you drag a corner handle to resize it. You can also drag the image to reposition it within the frame.
Pro tip: When the PSD file is linked, any changes you make to it in Photoshop will update automatically in the Illustrator layout.