We had these two 
Pirate Pete's Potty - it was great. It's a board book and has a button on the front that gives cheering sounds when pressed.
Pirate Pete's Potty - click here
Aliens Love Underpants - This one isn't actually potty training but helps with enthusiasm about wearing real pants instead of nappies. It was a very funny book and went down well.
Aliens Love Underpants - click here
Pirate Pete's Potty - it was great. It's a board book and has a button on the front that gives cheering sounds when pressed.
Pirate Pete's Potty - click here
Aliens Love Underpants - This one isn't actually potty training but helps with enthusiasm about wearing real pants instead of nappies. It was a very funny book and went down well.
Aliens Love Underpants - click here