Book Recommendation for the writer

Waking up the past few mornings to William Zinsser's essays has been a gift. His words make me want to be a better, clearer and more present writer. Not to mention he wrote these personal essays in the twilight years of his career by mailing them to Allen Freeman, editor of American Scholar's blog, who then typed them up after conferring with him on the phone and by mail with physically printed out edits, until finally posting them online. 

In one of his essays on technology, Zinsser goes over his feelings of refusing to have an email even if it made communication less convenient for everyone else. He never wanted to be a slave to his email, and he managed to be the only successful 87 year old blogger without one. I can't imagine that dedication and I'm so grateful for that editor to work the extra mile so that we could have Zinsser's essays