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Phylogenetic analysis is the study of evolution and relationships between different species (or taxa), generally computed from biological sequence data.   Trees are the most used datatypes to conceptualize, visualize and analyze the evolution of different biological lineages. In fact, they are well suited for describing the evolutionary pathways of different species, because of them being intuitive as well as easy to query and study from both computational and mathematical point of view.  However, trees are impractical when it comes to accommodate for reticulated events such as horizontal gene transfer, hybridization and recombination between lineages, thus the need for novel methods in order to fill this gap. Phylogenetic networks provide such an alternative. The topic that was presented by C. Scornavacca is an overview of how networks can improve phylogenomics.