If you're going to do some Vietnam reading, be careful, there's LOTS of fakes and phonies out there.
A disgrace named "Gayle Rivers" wrote
'The Five Fingers,
'Kill House'
'The War Against The Terrorist'
and 'Specialist, My Life in SpecOps' anong others.
This jerk was appearing on British and American TV (in a MASK, for crist sake) as an expert on Special forces ops. He was exposed when some SEALS read his book 'War Against Terrorists', and 'Specialist'. They get a good laugh at most of this crap, but when he wrote that he had been giving the SEALS underwater demolition training, they got mad and called some friends in the British SAS. The SAS'ers called some newspaper friends at The Times in London who did a little research with the Austrialian press.
"Gayle Rivers" was a QUARTERMASTER serving the Ausy SAS regiment. He left the army one step ahead of a court martial, and using his knowlege of the SAS, set himself up as a SpecOps 'expert and author'. When he was exposed by the Times, British TV stopped using him. To give you an idea of how smart people are, the U.S. press continued to use him for another year or so. He's no doubt, still out there under another name.
James Reeves wrote 'Mekong' and 'Covert Actions'
about SEAL ops. Reeves was a Navy aircraft mechanic at the Memphis NAS. Never a SEAL, never in Vietnam.
Some bozo who I can't remember right now wrote a book about his time with Special Forces, in which the first several pages appeared to be his service record, listing numorius medals, with areas blacked out 'for security". This clown wrote this book while doing life in a Federal slammer for multiple murder. No Special Forces, no Vietnam, no military service AT ALL.
Another book of recent years was by a Navy vet who was a member of a CIA special ops team in Vietnam. No such service-fake.
If you want the straight stuff, read the works by the real guys--Marchinko, Walsh, Watson, etc.