Man City chief: Bojinov exciting signing
Bojinov, who spent last season at Juventus, has agreed a four-year deal.
City chief executive Alistair Mackintosh said: "Our signing of Valeri is another sign of the impact made by Dr Thaksin Shinawatra and Sven-Goran Eriksson. Valeri is an exciting young player and a great addition to the squad."
He is Eriksson's eighth signing since being appointed City manager last month.