Nonduality books in PDF format:

The Ease of Being by Jean Klean
The Ecology of Consciousness by Jon Bernie
Gifts With No Giver by Nirmala
I Am by Jean Klean
I Am That by Sri Nisargadatta Maharaj
Living from the Heart by Nirmala
Nothing Personal by Nirmala
Radiance by Gina Lake
That is That by Nirmala
The Wonder of Being (excerpts) by Jeff Foster