Lot of 7 Books about the Unexplained

BLACK HOLES
" The End of the Universe ? "
" The Bizarre, Unbelievable, True Story
of the Most Destructive Force in Space -
and Its Threat of Doom for All Mankind "
Paperback book by John G. Taylor, Professor of Mathematics
First Avon Printing, May, 1975
Copyright 1973 by John Taylor
The pages are yellowed due to aging and there are some creases on the cover.

MONSTERS AMONG US:
JOURNEY TO THE
UNEXPLAINED
" Strange and Mysterious -
The Bermuda Triangle, Snowmen
and Sea Creatures,
UFO Spacemen and Missing Links ! "
Paperback book by John Lee and Barbara Moore
Copyright 1975 by John Lee and Barbara Moore
The pages are yellowed due to aging.

TRUE TALES
OF THE
UNKNOWN
" Hauntings. Possessions. "
" Spirits of Evil. True Stories That Will
Shock and Terrify You. "
Paperback book edited by Sharon Jarvis
Copyright 1985 by Sharon Jarvis

STARTLING EVIDENCE OF ANOTHER
FORM OF LIFE ON EARTH NOW:
BIGFOOT
" 8 pages of revealing photographs "
Paperback book by John Napier
Copyright 1972 by John Napier

THE
BERMUDA
TRIANGLE
Paperback book by Adi-Kent Thomas Jeffrey
Third Printing: June, 1975
Copyright 1973 by Adi-Kent Thomas Jeffrey
The bottom corner of the front cover is torn off.

THE
UNEXPLAINED
" The Always Baffling - Often Treacherous -
Secret Workings of Our Planet, Universe, and Beyond ! "
Paperback book by F.L Boschke
Translated from the German by Jan Van Heurck
First Pocket Books printing October, 1978
Copyright 1975 by Econ Verlag GmbH
The edges of the pages are yellowed due to aging and there are a few creases on the covers.

They are all in pretty good condition with some wear to the covers and as noted above. No torn or missing pages and no other markings or writing.