Do potty training books work in getting the tots familiarise?

It does help to get them familiarised with the idea of going to the toilet. After reading to them, they will roughly have an idea of the process (inform mum, dad or helper of the urge to pee/poo, go to the toilet, sit on the potty etc). You can play songs for them to listen to as well! http://sg.theasianparent.com/songs-toddler-potty-training/

Yes, they do work in terms of "psyching" a child. If you want a list of books on potty training, you can browse through this: http://sg.theasianparent.com/best-potty-training-books-for-you-and-your-child/

Yes reading story books on using potty is very useful to toddlers to let them understand what is going on.

thanks