Data from more than 770 000 children diagnosed with cancer during two decades from the 1990s to the 2000s were used to generate this rich resource for conducting research and formulating public health policies. The full IICC-3 publication in PDF format is available from the IARC Publications website. Here, additional details are disseminated in 516 registry-specific tables, 116 comparative tables, and 13 annex tables describing the included populations, registries, and presented datasets.