I don't know, it's hard for me to know what the author means by "fundamentals". I looked at the table of contents from the amazon website, and somethings that I consider pretty fundamental like Thevenin's Theorem didn't seem to be listed there. By comparison it's in Chapter 1, page 9 on my copy of "The Art of Electronics". I'm not trying to knock the book, it could be very handy, but I would use the term "basics" as opposed to "fundamentals" to describe the content as I understand it.