​I don't sell my own books, so if you would like to buy personally-signed copies, you can contact Paper Bird bookstore in Freo (and I'll go in t0 sign them). Links below:

Zac & Mia:
https://store.paperbird.com.au/p/3754258
 
Hive:
https://store.paperbird.com.au/p/6119480
 
Rogue:
https://store.paperbird.com.au/p/8808476
 
Wave Length:
https://store.paperbird.com.au/p/3725732
 
(Shutterspeed is out of print - available as an ebook only.)