Or is there a good book? I hate presenting just because I have no real system I follow.
The "Rotation, Exposure, ABCDE" method is useful for people first starting to present.
Airway (trachea, bronchograms)
Bones (fractures, osteopenia)
Cardiac (silhouette, size, blurred edges)
Diaphragm (Costovertebral angles, gastric bubble)
Everything else (Lung fields, Lines, Tubes)
If you are looking for how to actually ready them, I cannot emphasize enough the need to get behind a resident reading films. At my school there is a room where all they do is read Xrays, 100s all day long. I now dominate in X-ray interpretation. Im no radiologist, but comparable to even most of my residents, I can pick up things better than they can. I spent 8 days behind a resident.
I too looked for a text to orient me. I didnt find any that were particularly strong. Learning Radiology Website + 100s of films of Practice was the formula for me.