The 8th edition of the Winter School on Network Optimization will take place at Hotel Estoril Éden,   Estoril,  from the 14th  to the 18th of January 2019. Its main objective is to provide an opportunity for PhD students to get together and attend high level courses in the field of Network Optimization. Non-PhD students are welcome to attend the school, but the number of participants is limited and priority will be given to PhD students.