This book is dedicated to an anonymous member of Spain's Secret Police. On January 27, 1960, during a brief encounter on a quiet back street in Santa Cruz de Tenerife, I asked him for advice on how best to avoid any problems in the land of Generalissimo Francisco Franco. The advice he gave me has served me well for more than forty years. He said there was only one way to avoid troubles with the authorities:

"Make yourself invisible."

And so I did.

J.J. Luna
How To Be Invisible
2nd Edition