Top products from r/Sumo

The first one I read was this one, which seems like it may be out of print, but it was surprisingly good and really helped me enjoy going to matches more. Goes into the history, training, daily life inside a stable then of course all the actual tournament info, rules, etc. I should actually pick up a copy again so I can loan it out to people, I seem to mention it whenever the topic comes up among friends and acquaintances.

There was another one I read but I can't remember the name of it for the life of me (it was 12 years ago now). But it was more of a drier read and history-based. I think most of what I remember still comes from the other, Grand Sumo: Fully Illustrated.

Sumo Skills by Thomas Zabel is an excellent resource for Sumo training. Breaks down basic movements and techniques along with practice regimes. I've bought it and would recommend to anyone else wanting to learn Sumo.

This book is great for beginners.

http://www.amazon.com/Joy-Sumo-David-Benjamin/dp/0804816794/ref=sr_1_1?ie=UTF8&qid=1390092475&sr=8-1&keywords=joy+of+sumo

I've heard people say very good things about this book: https://www.amazon.com/Sumo-Skills-Instructional-Guide-Competitive/dp/0991408608 .

This book is very good:
http://www.amazon.com/gp/product/0991408608?keywords=sumo%20training&qid=1451904681&ref_=sr_1_1&sr=8-1

I've been considering this one to educate myself for our podcast. Maybe you could find it useful:

https://www.amazon.com/gp/aw/d/0991408608/ref=ox_sc_saved_image_2?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

Thank you for this; that's neat. The guy that wrote this book calls them "mondegreens" since English lacks a word for them.

https://www.amazon.com/Sumo-Skills-Instructional-Guide-Competitive/dp/0991408608/ref=pd_sim_14_1?_encoding=UTF8&pd_rd_i=0991408608&pd_rd_r=R23QWKPBR8D701V0FK2M&pd_rd_w=GkGZu&pd_rd_wg=SLQRR&psc=1&refRID=R23QWKPBR8D701V0FK2M

I came upon this while browsing Sumo. Never read it but just a thought. There's also a recommended book on that page about how to use Sumo techniques in MMA.

I know you said you were looking for something free and online, but this guide might be what you're thinking of: https://www.amazon.com/Sumo-Skills-Instructional-Guide-Competitive/dp/0991408608/

I picked up the book Sumo for Mixed Martial Arts a few weeks back to look at adding some sumo techniques to my wrestling. The first third of the book is some background on sumo of course, and the author also does some short examinations of a few rikishi and their styles. After that, the book focuses on about 40 of the accepted techniques in sumo. They focus mainly on techniques that don't require a belt grip, but they address it for some of them that can be done with or without the mawashi.