This a more recent edition from the Klingenfuss guide I use in my shack .
This book has still ca 600 pages of information but the paper used is quite thinner so that the total thickness is only the half of the previous edition
This edition has several minor changes :
Radio regulations are with the previous edition do not exist , or just several paragraphs are noticed
The structure of the book remains the same . Only modifications to the introductory text as the technology has been severely changed (esp in the encoding types with more complex systems ) as first there was a decline of the shortwave services
There is a paragraph commenting on the total disinformation happened by rivals editions and the internet clubs and forums with either plagiarized material or even phantom frequencies (ie quantity against quality ) or even extinct stations. As in result he notes : ‘hands off the internet’ I don’t know if this really true but I suspect some arrogance.
There is also a a big text of ca 6 pages about the newly formed (those times )with HF email (ie email by radio) tht they think is more secure than the standard email
The frequency listing is 297 pages of 9700 freqs on 1900 services /stations with the same format (freq , ID , station and )
In the alphabetical listing there are not mail addresses , but the reader is encouraged to look at ICAO ITU and other international sites . Also if a station has internet page it is also noted
And all information as noticed for the third part (Q codes Z codes and all remain in the same series )
And the publisher’s self advertisement
The book is still a valuable guide. I kept both editions.