If you don't goto college or have access to college courses then look on amazon and bookstore for books on technical writing.
Working with Tim of Gothridge Manor is a major influence on my writing styles but the other major influences are the technical writing course I had to take in college and the fact that I am responsible for release documentation at my work. For example
Please note that customers should run a strip of metal through their male pittsburgh machine and measure the amount of metal it bends up. The customer then should check that the distance of their male pittsburgh seam in the software reflects that measurement.From Blackmarsh
If not enough metal is bent up the path of the male seam on heel on a radius elbow cheek piece will be longer than the female seam on the radius heel piece. When joined, the heel will then come up short.
0616 Ruchill Burn runs through a 50’ deep gorge for over a half mile. During the Bright Empire, magic-users established a conclave here to harvest the viz found within the cliffs of the gorge. Two centuries after the empire’s fall, the conclave was abandoned. The cliffs are honeycombed with several levels of the conclave. Many of the levels span both sides of the gorge with bridges connecting them. Not all of them are safe.