Big fan of the book referenced by this course, as well as Stevens' TCP/IP books.
Him and Doug Comer were the explainers of TCP/IP to a whole generation of network programmers.
Him and Doug Comer were the explainers of TCP/IP to a whole generation of network programmers.
I think either of these authors' books is fine by itself. You just need to update yourself with RFCs and any other sources of info for newer developments in the stack.