The series “Jornadas de Trabajo en Mecánica Celeste” started in 1998 on the initiative of “Grupo de Mecánica Espacial” from Universidad de Zaragoza. These reunions are intended to be a meeting point for research groups in Celestial Mechanics. In a warm and relaxed atmosphere, eighteen editions have been already held. Ongoing research projects have been shared and discussed. New collaboration ideas have emerged. The upcoming edition is the nineteenth and, after eighteen years, we go back to Navarre. On this occasion we will meet in Tudela. Both the city and the campus of Universidad Pública de Navarra await us with open arms.