This is an announcement for the paper "Characterizing of Inner Product Spaces by the Mapping $n_{x,y}$" by Hossein Dehghan. Abstract: For the vectors $x$ and $y$ in a normed linear spaces $X$, the mapping $n_{x,y}: \mathbb{R}\to \mathbb{R}$ is defined by $n_{x,y}(t)=\|x+ty\|$. In this note, comparing the mappings $n_{x,y}$ and $n_{y,x}$ we obtain a simple and useful characterization of inner product spaces. Archive classification: math.FA math.CA Submitted from: hossein.dehgan@gmail.com The paper may be downloaded from the archive by web browser from URL http://front.math.ucdavis.edu/1502.02250 or http://arXiv.org/abs/1502.02250