
The Photographer's Eye by Michael Freeman
Helps a photographer who knows their settings start making pictures that are better arranged, not just sharper.

~$15 typical price
Understanding Exposure, Fourth Edition
Bryan Peterson's widely used guide to aperture, shutter speed and ISO, with example photos throughout.
Why it makes a great gift
The book that gets many new photographers off auto mode and shooting with intent.

Helps a photographer who knows their settings start making pictures that are better arranged, not just sharper.

Waves: Pro Surfers and Their World by Thom Gilbert
Gives a surfer or wave lover something to display and browse.

Mr. Pen Book Annotation Kit
Readers who annotate love having a color system, and translucent tabs let them mark a line without covering it.

I Will Teach You to Be Rich by Ramit Sethi
Few schools teach this, and a graduate who reads one good money book in their first year is ahead for a long time.