In March, 2016. I self-published This Chair Rocks: A Manifesto Against Ageism. In 2018 I sold the rights to Celadon Books, a new imprint of Macmillan Publishers, which will be bringing the book out in March, 2019. You can preorder the book here:
hardcover: Indiebound, Barnes & Noble, Amazon
eBook, Kindle, iBooks: iTunes, Barnes & Noble, Amazon
audiobook: Barnes & Noble, Amazon