Here are some tips to get you started editing photos:

As a thought experiment, suppose we accept our existing film-like concepts of photography, just as they have stood for well over a century. For the space of this chapter, let’s continue to think of any and all photographs, whether captured digitally or on film, as a fixed and static record of a viewed scene, a straightforward copy of the 2-D image formed on a plane behind a lens. ................
................