National_geographic. Organisation for Economic Co-operation and Development. COSTP World History Project - Wikibooks, collection of open-cont. About COSTP World History Project The California Open Source Textbook Project (COSTP), founded by Sanford Forte, began as a private/public undertaking promote use of California State K-12 Standards to develop printed and eBook versions of open source textbooks that will be approved for adoption by California's State Board of Education for use in California public schools at far less cost than current commercial textbook offerings - thus helping the State of California save money ($200M+ per year) while providing more robust content for its public schools.
The COSTP World History Project on Wikibooks is a placeholder pilot that helped prove Open-licensed textbooks as a viable concept in K-12 education. International News from Around the World.