These tutorials show how to use the basic tools in Photoshop:
Stasiuk, Russel. (2011). Photoshop for beginners Part 1.
ekacariyaṃ daḷhaṃ kayirā;
natthi bāle sahāyatā.
Should a seeker not find
a companion who is better or equal,
let one resolutely pursue a solitary course;
there is no fellowship with the fool.