If you're in Los Angeles, Skylight Books in Los Feliz has all of three books (Vol 1+2, 3 and 4) in their Annex. As the book cover says,
"I traveled the world with a tiny backpack and a tiny journal. I recorded what I found with surprisingly intricate letters and drawings. "Tamioo Nikki" is an actual-size copy of my art work. I don't know if you can read it, but I hope you enjoy it."
Happy Solstice, everyone!