Logic: A Very Short Introduction
Graham Priest
Reason in Philosophy: Animating Ideas
Robert Brandom
Saul Kripke
G. W. Fitch
Lectures on the History of Philosophy: Medieval and Modern Philosophy
Georg Wilhelm Friedrich Hegel
An Introduction to Sustainable Development
Peter P. Rogers & Kazi F. Jalal & John A. Boyd
Living Water Viktor Schauberger and the Secrets of Natural Energz
Olof Alexandersson