The upcoming Jon-Shmuel Halfway to Twelfty conference will be held July 4-7 at Ecole des Ponts et Chaussées to celebrate the 60th birthdays of Jon Lee and Shmuel Onn and will bring together a diverse group of researchers interested in continuous and integer optimization, computational and discrete geometry, theory and applications. Renown experts from leading institutions will gather at Ecole des Ponts et Chaussées to present recent advances and exchange ideas.