If you are looking for specific reading materials or PDFs, here are some of his most influential works and resources: Key Books and Manuals
: Often considered the foundational text, this book explains how the brain interprets external threats and internal thoughts as the same biological reality. You can find digital versions or previews through the Internet Archive .
: A more technical "treatise" co-authored with Rafael Marañón, commonly used as a reference in clinical or therapeutic study.