Resources for a Wannabe IntO

[Dazed and Confused]

I am about to apply to the RAF for officer selection for the second time, having fallen spectacularly at the OASC last time, and this time I am applying to be an IntO. I was wondering if anyone could recommend some reliable resources I can use to brush up on my knowledge of the role of intelligence operators in the RAF in general. I have read most of what the RAF website has to offer, but any books or websites about the role of an IntO or the collection and analysis of intelligence in the RAF would be very helpful. I am particularly struggling to find information on the future of the intelligence specialism in the RAF.

Thanks in advance for your help!