The International Journal on Optimization and Applications (IJOA, ISSN : 2737-8314) is an open access, double blind peer-reviewed online journal aiming at publishing high-quality research in all areas of :Optimization, Applied mathematics, Engineering science, Artificial intelligence, Numerical Methods, Embedded Systems, Electric, Electronic engineering, Telecommunication Engineering, Economy and Finance, Digital Management, E-Marketing… the IJOA begins its publication from 2021, by 3 Issues per Volume per Year (one Issue each 4 months). The journal is enriched by very important special manuscripts that deal with problems using the latest methods of optimization. It aims to develop new ideas and collaborations, to be aware of the latest search trends in the optimization techniques and their applications in various fields.