[Boost-users] boost header files

Hello , I am very new to boost libraries and infact to C++. I have very basic questions. I know that when we have a header file (.hpp) then there must also be a (.cpp) that is the implementation of the header file. But when i see the boost header files in \boost directory I dont find any .cpp files. Where are they? And what if I am using boost header files in my program then in the makefile I need to compile these header files with the corresponding .cpp files. So what path should I use for them? Waiting for your kind reply...Please reply. regards Hammad