'What Color is Your Parachute' is a classic.
I also like 'The Pathfinder - How to Choose or Change Your Career for a Lifetime of Satisfaction and Success' by Nicholas Lore
And a book that really helped me focus in on my goals and strengths (and hone interview skills) was 'Now, Discover Your Strengths' --- inside the book jacket there is a code that lets you take a StrengthsFinder assessment from the The Gallup Organization at
https://www.strengthsfinder.com/