Back in the late 90s when I used Photoshop as part of my Project Support / Sysadmin 50/50 position, I used books that taught me how to do certain things. I think it's just that Photoshop is that much more popular so has orders of magnitude more people writing books and HOWTOs.
I disagree, I picked up photoshop at the age of ~13 and did most things mostly naturally. I've tried GIMP 4 or 5 different times at various ages and I've never been able to achieve anything without hours of effort and guides.
