  Planned as a review of CPV in B-mesons which covered recent B-factories
results these lectures appeared to be a bit wider. It is not natural to be
limited by direct CPV and that in mixing in B-mesons and not to speak about the
analogous phenomena in K-mesons since it is very useful and interesting to
study what is common and what is different in these systems and why. CKM matrix
elements are extracted from K and B mixings and decays and the deviation from
unitarity of CKM matrix may become a place in which New Physics will show up.
So we discuss this simple and elegant piece of Standard Model as well.
