The pilot ready rooms are used by battlestar pilots for pre-flight briefings. They have several rows of chairs for pilots and a podium for the CAG. The rooms also serve as a classroom for nuggets.
Regarding Galactica's, there is a dry-erase board which is probably used to log the landings and launches — a timetable of sorts for each active pilot. Instructions, objectives, etc. appear on a bigger dry-erase board on an easel. Schematics of the Viper and guides to the fighter itself are also available for training purposes.
Ready rooms are also used for press conferences by senior staff ("Fragged," "Home, Part I").
A copy of "Lest We Forget", the famous picture of the soldier on the roof of the capitol building on Aerelon during the Cylon attack, is posted on one door of Galactica's pilot ready room. Moreover, several squadron emblems decorate the walls.
The pilot ready rooms aboard the Mercury class battlestar Pegasus are more advanced than those on Galactica, including larger and more prominent interactive display screens.