I always thought this was called the "Wall jumping spider", but after a little research, it seems like it has no common name - just Pseudeuophrys lanigera.
I found this on our hall ceiling this morning, and its taken me an hour or so to get a few half decent shots of it.
I'll add to this post when I can, after finding out more about this tiny wee jumping spider - about 4mm in length and 3mm in width.
Click any image to enlarge...
NB. Later today.
After some more research I have found that this spider is one of eleven species found within this genus in Europe. Our spider is a female (its fore legs are not darkened - as is the normal colouration for displaying males), and it does have a common name - the "House Jumping Spider". It is very often found near or in human habitations - often on or in roofs, and sometimes in rooms - like the one I photographed.