Mapes was author of the 1953 book Men and Unions.
He wrote the book Strong Men South as a chronicle of his adventures in 1949.
She has also recently released her first book - Men on my mind.
On May 7, 2013 Mathews released the book Man Up!
In 2006 his book Men at Birth which chronicles men's experience of birth, was published.
He is considered by some a pioneer transhumanist on the basis of his 1972 book Man into Superman.
He is perhaps best remembered as the author of the book Man in Reciprocity.
The book Man, published in 1901, comes to the same conclusion:
One of the results was his award-winning book Political Man (1960), which remains thought provoking to this day.
In 1975 his book Man as Male and Female was published.