The WorldPop Book of Methods is published on Github and details the innovative methods we use to create our open gridded population estimates. These methods involve integrating diverse data sources such as satellite imagery, census data, and surveys with machine learning algorithms. Each chapter of the book explores specific aspects of the methodology, including data collection, processing, spatial modelling, and validation.

A central tenet of our work is a commitment to openness and collaboration. The datasets and methods described in the book are made freely available to the public, reflecting the belief that access to accurate population information is a global public good. The preface also highlights the importance of partnerships with international agencies and national statistical offices for the co-development and implementation of their models.