Do you have a copy of “Privacy Wisdom” published by “Info-Assist Ltd” lying around?
In some places it is listed as being authored by “Chris Callow” and it is now out of print.
It was part of a series of books entitled “Up the System!” published in the mid 1990’s.
It will be A4 in size with a yellow cover.
Other associated names that might be useful to Googlers landing here would be “Lee Morris” and “Goldstone Books”.
If you have a copy of this book, reply to this topic using the comments box below (it will go to “moderation” and will not appear) and the chap who wants it will then send you an e-mail.