Transition Training Programme ay? I reckon many of us selected for the Stage 2 interview are from the Advanced Entry Programme. But it goes without saying, the useful books would be 'Ace the Technical Interview', 'Preparing for your Cathay Pacific Interview', 'Handling the big jets'.
I'm not aware of the interview process or aptitude/technical tests for TT pilots at the final stage. It could be the same as it is for the AE pilots.