This is a wonderful book to have around. Very detailed information and pictures with nearly every throw, choke and armlock; as well as philosophical information, a brief history and some tips on solo training.
Someone mentioned a book by Neil Ohlencamp as being really good for improving one's Judo/Sambo game and being an all-around great read in regards to technique with principle.
spoiler alert... this book is a great reference but won't give you that boost that you're looking for.
This book impacted my judo more so than the Kodokan Judo book: https://www.amazon.com/Judo-Unleashed-Essential-Techniques-Intermediate/dp/0071475346/ref=pd_day0_b_14_4/147-9403292-3359160?_encoding=UTF8&pd_rd_i=0071475346&pd_rd_r=74bde955-5aee-11e9-93ae-4b1193112941&pd_rd_w=lgbd7&pd_rd_wg=Ydmns&pf_rd_p=b21f843a-654c-40f8-899e-282283dbe728&pf_rd_r=Y9GJ0NH6EDCV7XJ73F1T&psc=1&refRID=Y9GJ0NH6EDCV7XJ73F1T
My go to books other than Kodokan Judo are the Canon of Judo by Kuyozo Mifune and Judo Unleashed by Neil Ohlenkamp.
This is a wonderful book to have around. Very detailed information and pictures with nearly every throw, choke and armlock; as well as philosophical information, a brief history and some tips on solo training.
https://superstarjudo.com
https://www.reddit.com/r/judo/comments/5j5tbk/judo_sask_one_of_my_favourite_instructionals/
https://www.amazon.com/Judo-Unleashed-Essential-Techniques-Intermediate/dp/0071475346
http://www.bestjudo.com/review/26165/vital-judo-throwing-techniques
Someone mentioned a book by Neil Ohlencamp as being really good for improving one's Judo/Sambo game and being an all-around great read in regards to technique with principle.
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https://www.amazon.com/Judo-Unleashed-Essential-Techniques-Intermediate/dp/0071475346
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Also the Judo Master Series many have said are very Good Books for Judo/Sambo/Grappling.
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https://www.amazon.com/Pick-Ups-Masterclass-Techniques-Robert-Walle/dp/1874572100/ref=sr_1_1?keywords=judo+pick+ups&qid=1556987181&s=books&sr=1-1-spell