It was a book about a little boy and his teddy bear and what they got up to during the day.
The main thing I remember was that instead of drawings the pictures were all photographs and the bear was a small knitted brown one, whose name I think began with a B.
This was during the late 80s and I think I used to get it out during every other visit to the library (take it back one week and get it out the next). I can vividly remember my mum pleading with me once to get any other book out as she was fed up of reading it and we both knew it backwards anyway but I was resolute.
So annoying because I was utterly obsessed with it but now can't remember the name and Google isn't being any help.