The pion scalar form factor along with all existing S-wave iso-scalar $pipi$-scattering phase shift data in the elastic region up to $1 {rm GeV}^2$ are applied for a determination of the $f_0(500)$ and $f_0(980)$ meson parameters $m_{f_0(500)}=(360pm
33){rm MeV}$, $Gamma_{f_0(500)}=(587pm 85){rm MeV}$ and $m_{f_0(980)}=(957pm77) {rm MeV}$, $Gamma_{f_0(980)}=(164pm142){rm MeV}$ in a model independent way.
New precise experimental information on $sigma_{tot}(e^+e^- to pi^+ pi^-)$ is transferred into the space-like region, by taking advantage of the analyticity. As a result a rigorous pion electromagnetic form factor behavior is obtained. The latter with some existing model predictions is compared.
By means of the universal unitary and analytic model of electromagnetic structure of hadrons the two-photon decay rates of P=pi^0, eta, eta mesons are determined in an alternative way from data on their transition form factors.
