Dr Anne Jensen has been a friend of mine for some time, and when we met last year, she showed me some beautiful books she has published on river red gum, black box and lignum, where she put everything she has learned about each species into an easily readable format and with gorgeous photos. The links to these books are now available and you can purchase in e-format ($5.99) or hard copy through the Blurb.com website.

Mighty River Red Gums
The Lignum Tangle (A4 size)
The Lignum Tangle (small square size)
The Secrets of Black Box (A4 size)
The Secrets of Black Box (small square size)

I encourage you to take some time and examine the books as Anne has a wealth of theoretical and practical knowledge that she shares through these publications.
Siwan