: It covers everything from basic human physiology and the generation of bioelectric potentials to advanced diagnostic techniques like EEG , ECG , and EMG .

textbook by Dr. M. Arumugam. But not just any copy. He needed the version labeled "PDF Exclusive"—the legendary digital-only edition rumored to contain the final, unpublished chapter on neural-interface diagnostics.

To be a responsible guide, we must critique the text.