<human>:  What are good books to read for improving my writing skills?
<bot>: Some good books to read for improving your writing skills include "The Elements of Style" by William Strunk Jr. and E.B. White, "On Writing Well" by William Zinsser, "Writing Down the Bones" by Natalie Goldberg, "Bird by Bird" by Anne Lamott, and "The Writer's Mentor" by Jack Heffron.