Celebrate your right to vote No other book alludes to such seemingly unrelated subjects as peanut butter cups or Mr. Potato Head on the way to providing a concise history of the Twenty-Sixth Amendment and explaining its importance while delivering a strong non-partisan call for young voter turnout. Old Enough breaks the norms commonly found in non-fiction by thoughtfully addressing a significant topic in a well-researched but accessible and lighthearted way. Appealing to both reluctant and avid readers alike, the intended audience spans ninth graders to adults. The book highlights primary sources and includes drawings, historical images, a timeline, notes, and bibliography.