Basically, FMP is a series of light novels. The pictures are scarce and far in between. It's written in prose form and serialized in Dragon Magazine and later compiled into their novel/book form. Side stories are separated from the main story novels and so far TSR is based on the novel Owaru Day by Day. After that 3 more novels came out, Odoru Very Merry Christmas, Tsuduku on my Own and Moeru One Man Force, these are all part of the main story.
If you want to read the english translation of the novels you might want to visit this website:
http://boku-tachi.net
I hope this helps in some way.