Anti matter VS Dark matter

O I have read both of them, part 1 and 2 ..

Second book is not as good as first one cause it covers other sci fi shows and movies, not Star TreK .. but I love the first chapter of the second book where he talked about Xfiles and the UFO sightings and why UFO's cannot make a 90 degree turn ..

I think he also covered Independence Day in the second book.