Instructions: Write for Busy, Grouchy People
http://jerz.setonhill.edu/writing/technical/instructions/index.html

Jerz, Dennis G.
Seton Hill University
2000

Abstract:

People hate reading instructions, and will only glance at them when they are hopelessly lost. By then, they will already be frusrated and behind schedule. Organize your instructions carefully, phrase them clearly, and make them as brief as you possibly can.