Calorimetry is the method first used by Jackson and McKenna to study the ef
fect of finite-size on the molecular dynamics of glass-formers confined in
nano-meter scale pores. It was found that the glass transition is shifted t
o lower temperature as pore size decreases. Since then, other spectroscopic
techniques have corroborated this finding and given more information on th
e molecular dynamics. These results are used to compare with the prediction
s of several theories of glass transition, and in particular the coupling m
odel of the author.