The document discusses importing KEGG pathway data into Cytoscape and mapping custom node graphics. It demonstrates importing global metabolism maps from E. coli, yeast and human. It also shows using VizMap to visualize time-series expression data mapped onto the pathways, with over-expressed nodes colored red and under-expressed nodes green. Additionally, it describes using TogoWS to import additional annotation data not present in KGML files, and future plans for additional pathway analysis and visualization features in Cytoscape.