If you want to skip the brand markup, this unbranded textbook is the way to go.
Product Tag: Style Manuals
Writing Matters Handbook For Writing & Research 4th Edition Rebecca Moore Howard
What stands out about this textbook is the focus on practical applications.
Publication Manual (Official) 7th Edition of the American Psychological…
What stands out about this textbook is the way it links new material to prior knowledge.
Redbook A Manual on Legal Style – by Bryan A Garner
A nice touch in this textbook is the timeline of major discoveries in the field.
The Redbook: A Manual on Legal Style, 3D by President Garner, Bryan A: Used
A nice touch in this textbook is the chapter-opening vignettes that hook your interest.
Rules for Writers by Diana Hacker & Nancy Sommers, spiral bound – 9th edition
A nice touch in this textbook is the running glossary in the margins.
The Chicago Manual of Style, 17th Edition: Used
This textbook is written by a well-known expert in the subject area.
Write Right!: A Desktop Digest of Punctuation, Grammar, and Style
This textbook is the same edition used in my friend’s class last year.
Telling True Stories: A Nonfiction Writers’ Guide from the Nieman Fo – VERY GOOD
This unbranded textbook is a straightforward resource that gets straight to the point.
The Magic Words: Writing Great Books for Children and Young Adults
This textbook is well organized, with each chapter building on the last one.