On the subject of writing, which I admit to less experience than visuals, I’ll still insist on basics. However in this field beware of “instruction” that doesn’t stress just WRITING. You can’t learn to write by reading about it any more than you could learn to draw without sharping pencils because you’ve dulled them marking up paper. Also you can’t learn to write without reading – like a vacuum cleaner. In my opinion it almost doesn’t matter what you read, because you will start to see what is “good” and “bad” for yourself. In the field of writing there is as much room for diversity as in the visuals ie. James Joyce, Ernest Hemingway, Neal Stephenson, Tom Wolfe, William Shakespeare, Janet Evanovitch, Aeschylus, Norman Mailer, Nora Roberts, Dante Alighieri, F. Scott Fitzgerald, Virginia Woolf; read, read, read.
And my I suggest for punctugrammaritorical style; “The Elements of Style” by William Strunk Jr. and E.B. White.