Measurements of the CKM angle $\gamma \mathrm{/}{\varphi }_3$ at B-factories

The CKM angle $\gamma \mathrm{/}{\varphi }_3$ had been measured by two B-factories, the PEPII collider for the BaBar experiment and the KEKB collider for the Belle experiments. The present paper reports recent progress in $\gamma \mathrm{/}{\varphi }_3$.