I am often asked to teach Photoshop. Not so long ago I had a dialogue with a man who asked me to teach him how to process photos in Photoshop. After thinking a little, I agreed to teach him, specifying how much time he can devote to this. His answer struck me – he wanted to learn Photoshop in two days!
Yes, two days is enough only to learn the tools, remember the name and location of the right buttons and tools.