Scientific Jiu-Jitsu: A Unified Theory of Grappling

by Will Weisser

Unlock the Secrets of A Revolutionary Guide to Mastering Grappling Through Science and Biomechanics


Scientific Jiu-Jitsu A Unified Theory of Grappling offers a groundbreaking approach to understanding and mastering the art of Brazilian jiu-jitsu.


This book delves into the science behind grappling, presenting a unified theory that connects every technique, movement, and strategy to the fundamental principle of increasing relative strength. Whether you're a beginner or an experienced practitioner, this guide provides valuable insights to enhance your skills and understanding of jiu-jitsu.


Weisser's approach is rooted in scientific principles, making complex concepts accessible and applicable to real-world training. By focusing on the mechanics of force, alignment, and misdirection, the book equips martial artists with the tools to optimize their performance on the mat. Through detailed explanations and practical exercises, readers will learn how to apply these concepts to improve their grappling game.


Key



Explore the unified theory of grappling to enhance your jiu-jitsu skills.
Understand the science behind force, alignment, and misdirection in martial arts.
Learn how to increase your relative strength against opponents of any size.
Discover practical exercises to apply scientific principles to your training.
Gain insights into the mechanics of internal and external alignment.
Master the art of misdirection to outmaneuver and control your opponents.
Develop a deeper understanding of jiu-jitsu as both an art and a science.

Scientific Jiu-Jitsu is more than just a technique manual; it's a comprehensive guide that provides the missing "why" behind the "what" of jiu-jitsu. By integrating scientific concepts with practical application, this book empowers martial artists to train smarter and achieve greater success in their practice. Whether you're looking to refine your skills or gain a new perspective on grappling, this book is an essential resource for any martial arts practitioner seeking to elevate their game.

208 pages, Paperback

Expected publication June 2, 2026

About the author

Born into a literary family (both his parents are authors and college professors), Will fell in love with science fiction and fantasy literature during the comics boom of the early 90’s and never looked back. Now residing in the fantastic realm known as the Philly ‘burbs, he uses his geek talents to program computers by day, while by night he huddles over unfinished manuscripts, attempting to engineer characters who touch the human spirit. In his scant free time he enjoys practicing martial arts (which he is pretty good at) and playing guitar (terribly).

Reviews

[Bernie Gourley · Rating 4 out of 5]

This book outlines principles of positioning, alignment, and movement used to gain advantage while grappling. It is not a technique-centric book but rather is a concept-centric one. Weisser does for Brazilian Jiu-jitsu what Jiichi Watanabe and Lindy Avakian did for Judo with their book alternatively titled The Secrets of Judo or The Art and Science of Judo. Watanabe and Avakian focused more on both technique and elementary physics than does Weisser, but there is common ground in ideas of what positions make a body strong and what movements bring vulnerability. The biggest area of divergence between Watanabe's book and Weisser's is simply the difference between Judo and Brazilian Jiu-jitsu. Watanabe and Avakian direct the vast majority of their attention to how one gets the opponent to the ground and relatively little on what to do when one gets there, and Weisser's book is the other way around -- i.e. primarily assuming at least one person is already on the ground.

Weisser's book does assume that the reader has a background in Brazilian Jiu-jitsu, using terms specific to that system without necessarily providing elaboration. I say this just to point it out as (to be fair) I realized that I would have thought nothing of it if it used Japanese Jujutsu / Judo terminology in the same way. (I did have to go to Google at one point to elucidate what turned out to be a Dragonball-Z reference that went right over my head.)

Weisser's book uses a combination of graphics, including photographs. I found it easier to see the linkage between what the author was describing in the text and what was in the photos in some cases than in others. Often, there was a single photo catching one static situation, and if the grapplers were closely entangled (as grapplers are want to be,) it was not so easy to see -- even with different colored uniforms. [Note: I should point out that I was reading an ARC galley, and so that may all be sorted in the final formatting.]

As one who knows little of Brazilian Jiu-jitsu, but with some experience with other grappling systems, I found this book readable and thought-provoking. The statement of ideas is clear, and I'd recommend it for grapplers looking to engage in thinking about first principles of grappling.