Have some real estate under my belt but looking into Short term rentals opposed to long term rentals.Wondering if there is a stand out book to read to gain understanding for Australian Short Term rental market/AIRBNB.Also if there is a specific group for Australians and short term rentals for Australian market/Australian tax system etc, do point me to that.Rod

I would recommend to read a few books.

I just finished the BP book by Avery Carl and am hoping to borrow from ourselves to fund our first vacation rental. 

That could help guide what type of companies to explore a little further.Looking forward to your thoughts!

In my experience, allowing these professionals to guide you can be highly beneficial, as they are likely to recommend properties they would be comfortable managing.

Brandon Turner's Rental Property Investing book is an excellent primer to understanding the happy path for purchasing a property - however in this market it really comes down to having bulletproof assumptions on rents/taxes/R&M/etc. as with rates as high as they are/inventory as low as it is, there is less cushion in your returns if you analyze properties with bad assumptions.

I will mention that a hot tub could really increase the frequency of bookings. 

Liked what I heard Booked a flight out to Washington DC spent  2 days with him kicking the dirt.

Start with BiggerPockets Ultimate Beginners Guide (free).

2) How booked out are they?