Joshua Project is a research initiative seeking to highlight the ethnic people groups of the world with the fewest followers of Christ. Accurate, updated ethnic people group information is critical for understanding and completing the Great Commission. Revelation 5:9 and 7:9-10 show that there will be some from every tribe, tongue, nation and people before the Throne.
Operation World (OW) is widely regarded as the definitive volume of prayer information about the world and is the recipient of the ECPA Gold Medallion Award for Excellence in Evangelical Christian Literature.
OW has had seven editions published. The most recent is from 2010, which is a complete update of the 21st century edition, released in 2001. The previous edition was published in 1993. The original edition was produced in 1964, from South Africa, and was only 32 pages of basic information about 30 countries.