In our early writing years, many of us toiled under strict teachers who drilled the rules of English grammar into our collective consciousness. We sweated drops of blood on our pristine paper as we tried to craft perfect sentences for that much-desired 'A.' We prayed that we didn’t leave a word or clause misplaced or dangling for the teacher’s angry red pen to mark. Yet pick up a work of modern fiction, and you might notice that the writer has broken many of the rules that were drummed into our impressionable heads. These days, fiction often resembles the casual style of postmodern poetry, with sentence fragments and punctuation sprinkled about like seasoning. But in technical communication, we can’t be so casual. We must adhere to those rules of grammar our English teachers upheld— at least, for the most part.
Gallagher, Jolie A. Intercom (2002). Articles>Writing>Grammar>Technical Writing