The Best UFO Books I have come across were actually written in the 1980s and 1990s

The first book I read that I really thought had something to say important was:

Above Top Secret by Timothy Good.

This book was banned for awhile in this country because it gave too many facts that the U.S. government didn't want out. But, it was still published in Great Britain while it was banned by the U.S. Government and besides many of us had copies of this book before it got banned. And if you live in the U.S. it wasn't hard to order this book from England either even though it was banned in the U.S. because it was so accurate and embarrassing for the U.S. Government to have out here.

The 2nd book is by a Member of the DIA under Eisenhower in the White house called Colonel Corso.

This book is called:

The Day After Roswell:

However, this is a very Conservative publication which actually makes sense with an introduction by  then Senator Strom Thurmond. However, this makes sense because at that time people who were the most military observers of UFOs that were top Secret were the conservative Faction of the Military in General.

Of ALL UFO books I have read: "The Day After Roswell" I found to be the most mind blowing and accurate regarding how he and General Trudeau reverse engineered UFO objects from Roswell and possibly other places as well by giving them to U.S. companies who were told that they were above Top Secret Items from Communist Russia even though they actually were mostly taken from the Roswell Crash site.

This computer you are using (or whatever other electronic device) has chips that started to be reverse engineered from Objects Colonel Corso and General Trudeau gave to U.S. companies to reverse engineered mostly from Roswell. This includes Kevlar Helmets now commonly used by soldiers around the world.