  At the first PPPP workshop, I gave a review talk on physics of B and
CP-phases. In my talk, I explained DRG method and our extension to extract CP
angles $\alpha$ and $\gamma$ from measurements of the decay rates of $B_{d,s}^0
\to \pi\pi, \pi K, K K$. There are several advantages to this extension:
discrete ambiguities are removed, fewer assumptions are necessary, and the
method works even if all strong phases vanish. I also talked on several other
topics.
