Let’s Prehend is a sweeping description of ecology, society, culture, economy, politics, and humans themselves, measuring and analyzing them all with one simple pair of variables: Intensity (i) and Extent (E) This volume contains the preface, introduction, and first five chapters of the book, laying out the concept and beginning to show how the analysis can be applied to many of the world’s pressing issues. The last half of the book is supplied online for free on the website, along with 85 short essays addressing particular issues. Because no one book can provide solutions to all the world’s problems, the author insisted that the subitle be “A Manual of Human Ecology and Culture Design.” However, the book itself, and even more particularly the additional essays, contain so many brilliantly simple solutions to seemingly insoluble problems that it is only fair to write that this is also a “reconstruction handbook” for many of Earth’s human-caused difficulties.