It is pretty similar to the 20" guide, but there are a few gotchas. I just went through the process today, and I had to improvise/figure things out a bit. Your mileage may very. (1) Step 3. Skipped. I tried this and just could not get anything to click or happen. Finally I tried step 4 and was able to open it up perfectly. Upon further examination, on one side there was a broken metallic mesh. Oops. Nothing important though. (2) Step 8, 9, 11. There was no EMI shield/tape in my iMac. Perhaps it was removed at some point (would be interesting to find out) when my DVD drive was replaced (by Apple Care, under warranty). It looks as i was cut on purpose. This will be fairly obvious. (3) Step 12. Possibly due to the bigger screen size (24"), there were actually 6 screws attaching the display to the rear case. MORE IMPORTANTLY: As noted without much emphasis in the fixit guide, these screws really are deep in. The torx screwdriver kit I got had a stub at the top to switch tops which was too fat to fit in the gap...