Your chosen font should invoke the messaging of the book and how you want the reader to feel while immersed in the writing. The right font is something the reader may not even notice because it flows so well with the content, whereas the wrong font can seem awkward and out of place, creating a jarring reading experience.
Garamond
How Changes in Design Can Save the Environment
By Maki Takase @mtakase @mtakase
In 2013, a fourteen-year-old student, Suvir Mirchandani, was wondering how his school could reduce its ink consumption after receiving tons of daily handouts. He started his research by focusing on the most frequently used letters in these handouts: e, t, a, o, and r. Then he applied them to four different types of fonts—Garamond, Times New Roman, Century Gothic, and Comic Sans—and compared their ink consumptions.