How can I answer your question without showing you the book itself?
I think the best thing is to list the table of Contents of Jim Rutherford's last issue.

1. Harbour Lights Today?
Lighthouse popularity?
What is Collectiblity?
The invisible hand?
What is retirement?
What is retired Shelf Life?
Who collects Harbour Lights?
Why is Harbour Lights Successful?

2. Yearbooks
Yearbook: Pre-History
Yearbook:1991
Yearbook:1992
Yearbook:1993
Yearbook:1994
Yearbook:1995
Yearbook:1996
Yearbook:1997
Yearbook:1998
Yearbook:1999
Yearbook: The Future

3. The Inside Story
How are Collectables produced?
Making Harbour Lights
The seahorses
Lighthouse Scuptors
Variations
Variation List
Variation Detail
Projected Desirability
Lighthouse Appreciation

4. Colleting Tips
Piece inspection
Piece Numbers
Secondary Sales
Buying and selling on the internet
Restoration
Protecting your investment

5. Lighthouse capsules

Conclusion