I purchased this, but my motivation to study has waned for the time being, so I'm putting it up for sale while it's still in good condition. This is an introductory book for beginners of the Denken San-shu (Third Class Electrician Examination), explaining the basic knowledge needed to pass the exam with easy-to-understand illustrations. - Title: Denken San-shu: The First Step to Passing - Publisher: TAC Publishing - Target Audience: Beginners - Content: Introductory book for Denken San-shu - ISBN: 978-4-8132-8660-2 Thank you for looking.