Bale says Villas-Boas has played a significant part in his development, improving his tactical awareness since the days of the previous manager Harry Redknapp.
"Harry was more 'go out there and play how you feel and express yourself'. With Andre, there's a certain shape and a style we play," Bale told Sport magazine.
"I think Harry was more free and let you do what you want. Andre does that too, but there's a lot more tactical work. I think it's something that's good to learn. We've done well this year and I think that's down to our defending as well as attacking."