Personally I was looking for a popular book and I filled my small level.
Electronics for Dummies is for real zero like me who have only bits of knowledge in this area.
It might be disgruntled to edit a book to be entitled "Electronics for scholars or zero for zero or mastered for Dummies with forty years of experience or wishing to preserve the occult side of their specialty"?
A null satisfied with being much less with this item.
