I have a copy. I wouldn't say it's "too light" because there's nowhere else to easily get this type of information, especially not all in one place. There's no "heavier" alternative. Most documentation doesn't include pictures, much less cross sections.
coauthor here: the book cover thing is a known issue that is turning out to be strangely difficult to solve. yes, the amazon cover is the older version.
A great introduction to circuits is Grob's Basic Electronics. I used at a community collge intro to circuits course and it (and the course) gave me a good headstart for when I eventually transferred to a four year university.
You're about to enter a wide world of wonders.