This is an amazing collection of the proposals for the competition won by Douglas with what became the A3D Skywarrior. As far as I know, at least 95% of the contents have never been published. Jared Zichek did a thorough job of documenting the Boeing F8B, and this is even more exceptional, not to mention welcome.
If you're interested in Naval aviation history, you won't need any more convincing. If you aren't sure, go herefor a page-by-page thumbnail review.
In 1956, at age 12, I lived on NAS Sangley Point in the Philippine Islands. Always enamored with airplanes, I imprinted on the Cougars, Banshees, and Skyraiders then being deployed. Not able to be a Naval Aviator because I was nearsighted, I instead became an aeronautical engineer and general aviation pilot. Now retired, I write books and monographs on U.S. Navy aircraft.