The speaker is reading the book “Confrontations” and notes it is third in a series by the best UFO researcher on human interactions with invaders from other dimensions or planets. Speaker likes the book because the author is rational and analytical, critical but not dismissive.
"The guest mentions he is reading the book Confrontations by Jacques Vallee and describes it as part of a series on human interactions with potential alien invaders, recommending Vallee as the most rational and analytical researcher in the field."