So…ideally, the cover of a catalog is supposed to be in the same theme as the design of the inside, something you can check out about your own project any time you want with the help of our A4 brochure mockup pack here. The extraordinary resolution is gonna make sure you can envision your design in its true form after print.
The download file is available for free, including 3 PSDs: one with only a closed catalog, focusing on the cover design from a perspective angle, another one with an open brochure featured from above, and the last one displaying both next to one another. How awesome is that?