https://www.abebooks.com/9781536201161/Counting-Dog-Years-Sassy-Math-1536201162/plp
Counting in Dog Years and Other Sassy Math Poems - Franco, Betsy: 9781536201161 - AbeBooks
Twenty-nine playful poems from the maven of math poetry + ingenious high-concept art = countless hours of mind-blowing, mathematical fun. Award-winning author...