Here, we celebrate a true MCFC legend with a reminder of the service Tony - or 'Skip' - has given the Club during his near 50-year association with the champions...
Aged almost 32,, Skip joins City from Plymouth Argyle for a fee of £30,000.
He is quickly appointed the new captain and begins a long and successful rivalry with Manchester United - here facing Reds' skipper Bobby Charlton in one of his first derbies for City.
Tony leads City out again and the right-back quickly becomes one of the most respected players in England as the sky blues win trophy after trophy...
Skip, pictured in 1968 with the Division One trophy, FA Cup and Charity Shield.
Another season, another trophy as Tony lifts the FA Cup in 1969 following a 1-0 win over Leicester at Wembley.
In 1969, Tony shares the PFA Player of the Year award with Dave Mackay - Skip is still the only City player to win the prestigious award.
In 1970 Skip captain's Joe Mercer's side to a first European trophy as City win the European Cup Winners' Cup in Vienna.
After breaking his leg, Tony returns to play 57 times during the 1969/70 season.
His derby battles with United star George Best became the stuff of legend with the Reds' star often citing Book as his most difficult opponent.
Tony became City boss in 1974, guiding the Club to League Cup success in 1976 and runners-up in the top flight Division One in 1976/77 before Malcolm Allison returned as coach in the late seventies.
Tony at the final Maine Road match against Southampton in 2003.
Current skipper Vincent Kompany with Tony at the Capital One Cup reception in London.
One City boss to another - Manuel Pellegrini and Tony with the Capital One Cup.
City legends at Wembley before the Capital One Cup final with Sunderland.
Happy 80th birthday, Skip - a true MCFC legend!