I’ve seen about half of the episodes. I’ve been watching with a friend. I like it, I think Burns is a great documentarian.
As for books, try these:
- Vietnam Declassified: The CIA and Counterinsurgency by Thomas L Ahern, Jr
- Lost Victory: A Firsthand Account of America’s Sixteen-Year Involvement in Vietnam by William Colby
- US Army Special Forces, 1961-1971 by Col. Francis J Kelly
If it’s memoirs you want, there’s too many of those to list, particularly for Special Forces.