The book "Fete of Combinatorics and Computer Science" offers a comprehensive insight into the close connection between discrete mathematics and theoretical computer science. These two fields of research not only have significant impacts on numerous applications but also on various scientific disciplines. The publication is a tribute to László Lovász, an outstanding scientist whose work has shaped many research directions over the past 40 years. On the occasion of his 60th birthday, numerous experts gathered in Hungary in August 2008 to honor his contributions. This collection includes both research and survey papers authored by leading professionals that bridge the disciplines. The contributions are a result of the conferences as well as subsequent works that reflect the diversity and depth of the topics addressed.