The ebook of Leaping Off into Space: A Travel Guide to Risk and the Imagination is available on Amazon for $7.99. If you have Amazon Prime it can be lent to you for free. On the ebook page you can see the Kirkus review. We were very pleasantly surprised by this review. I could only post parts of it but the gist of it is there. We are currently marketing the book to anyone we know in teaching/education. We shall see what happens. Makes life interesting.