This is the fourth conference "Modern Complex Analysis and Operator Theory and Applications". Similar meetings were held previously under  different names in Dublin (2004), El Escorial (2005), and Chapel Hill (2007). Just like the successful conference honoring Prof. Peter Duren in  2005, this fourth meeting in the series was held at the residence "Casa E. San José" in El Escorial, a historical town and a UNESCO World Heritage site located about 55 km (35 miles) away from downtown Madrid, Spain. Some activities will be held at the Hotel "Victoria Palace" in San Lorenzo de El Escorial.
The conference focused on a number of topics of current research such as spaces of analytic functions, geometric function theory, stochastic  Loewner equation, complex dynamics, dynamics of operators, Toeplitz and composition operators, as well as their different applications in  Mathematics and Science in general.  The meeting is now over. We would like to thank all the participants for coming and also regret that some pre-registered people could not participate due to illness. Hope to see you again at another similar meeting! Some pictures will be posted soon.