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Which book? Would it be Beyond Bodybuilding?No I don't think it will. @Kettlebelephant answered this earlier positively but to be frank, I'm very skeptical.
ES is supposed to be pure CNS strength. You practice the lift very frequently, for very low volume. You get "good" at it. You don't need much volume or intensity and that's precisely why it gets the "Easy" name. It's perfect training for athletes or the common person.
Muscle building, on the other hand, does require fatigue. It requires blood occlusion, it requires metabolic waste buildup, it requires heavy weights (to turn on as many muscle fibers as possible) and higher volume (to create the fatigue level necessary for the physiological adaptations).
Easy Strength is a great strength program, but that doesn't mean it's a great hypertrophy program. Pavel has released hypertrophy protocols in the past (and a book dedicated to it) so if you're looking for mass without compromising strength, I'd start there.
Just my 2 cents