Great book for: writing anything career-related
Don't let the title of this book deceive you — "Wait, How Do I Write This Email?" is not just about writing professional-sounding emails — though, yes, it does include practical tips for that, too.
The book covers just about any job search situation you can think of that involves a written component, from crafting LinkedIn profiles, résumés, and cover letters to soliciting a referral or career guidance. Even if you'd never written a word in your life, this book could help you pass for the most competent professional out there.