Feedback on AAPG statement on hydraulic fracturing

A simple description of what it is, with pictures of course, would be helpful for student/junior geologists. The inclusion of some of the terminology around it would be most helpful (stages, frac length, max hz stress, breakdown pressure, slick wa...A simple description of what it is, with pictures of course, would be helpful for student/junior geologists. The inclusion of some of the terminology around it would be most helpful (stages, frac length, max hz stress, breakdown pressure, slick water fracs, gel fracs, etc.).More