This is an announcement for the paper "Multiplication and composition operators between two Orlicz spaces" by Yousef Estaremi. Abstract: In this paper we consider composition operator $C_{\varphi} generated by nonsingular measurable transformation $T$ and multiplication operator $M_u$ generated by measurable function $u$ between two different Or- licz spaces, then we investigate boundedness, compactness and essential norm of multiplication and composition operators in term of properties of the mapping $\varphi$, the function $u$ and the measure space $(X, \Sigma, \mu)$. Archive classification: math.FA Submitted from: estaremi@gmail.com The paper may be downloaded from the archive by web browser from URL http://front.math.ucdavis.edu/1301.4830 or http://arXiv.org/abs/1301.4830