Did he already do his memoir recently? Anything interesting would arguably have been in that. He's also been interviewed extensively on Villa podcasts. A great man but never strikes me as the best raconteur.
I've got two Brian books. Return of the Little Villan from about 1996 and A Little is Enough which must have only come out about three years or so. That one is signed though so I will treasure that forever.
I have an Andy Gray autobiography called Shades of Gray. I believe he's had another autobiography out since then.