Best Resources for Learning Path Integral Formulation in Quantum Mechanics?

[Amok]

Hey guys, can anyone suggest good learning materials (books, lectures, pdfs...) for the path integral formulation of QM? I don't need anything too advanced, just a thorough intro. Are Feynman's books any good?

EDIT: Oh yeah, some quantum thermodynamics too in the mix would be cool.

 

[lugita15]

Yes, Feynman and Hibbs' textbook "Quantum Mechanics and Path Integrals" is excellent. It was out of print for a while, and prices for used copies were sky-high. But recently Dover released a new paperback edition that's less than 15 dollars. For a more modern treatment of the path integral formulation, try A Zee's "Quantum Field Theory in a Nutshell".

 

[Amok]

Thanks.

I don't really need anything about QFT, it's more about path integrals and their application to quantum thermo.