On and off in 3 months, I finished reading William Zinsser's book "On Writing Well".
The key is about Simplicity and Clarity
"We know that verbs have more vigot than nouns, that active verbs are better than passive verbs, that short words and sentences are easier to read than long ones, that concrete details are easier to process than vague abstractions."
...with no end of ways that can improve a manuscript . "pruning, shaping, clarifying, tidying, a hundred inconsistencies of thense and pronoun and location and tone, noticing all sentences that could be read in two different ways, dividing awkward long sentences into short ones, putting the writer back on the main road if he has strayed down a side path, building bridges where the writer has lost the reader by not paying attention to his transitions, questioning matters of judgment and taste." - what a long sentence with all the merits a good writer should have:-). Of course, craft the writing work as many times as 100% satisfied.
Another key note:
"If you would like to write better than everybody else, you have to want to write better than everybody else."
