A Celtic State of Mind offers an insight into the culture of Celtic Football Club, the city of Glasgow, and fans of the reigning invincible Scottish champions.

Each episode includes interviews with 'Celtic-minded' figures from the world of sport, music, film, art, broadcasting, literature or politics.

This week, 'A Celtic State of Mind' speaks to esteemed Celtic author and historian, David Potter.

With his 27th release - The Invincibles - recently published, David has written more books on Celtic than anyone else, and he is one-third of that holy trinity of club historians - Campbell, Potter & Woods.

Interestingly, those three authors have never collaborated on a Celtic book together, but David suggests that it is a concept he would welcome...

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