The KKL, or Jewish National Fund, a non-profit organization founded in 1901 to support the Jewish settlement in Palestine.
The organization bought and developed the land in Ottoman Palestine, later the British Mandate for Palestine, and subsequently Israel. Since its inception, the JNF says it has planted over 240 million trees, built 180 dams and reservoirs, developed 250,000 acres (1,000 km2) of land and established more than 1,000 parks.
Winning the KKL’s competition for the design of its Golden Book cover at the end of 1931, enabled Ismar David to come to Jerusalem and settle there. He subsequently designed three more Golden Book covers, as well as other graphics and exhibition work. The headquarters of the Keren Kayemet LeIsrael/Jewish National Fund is still in the Rehavia neighborhood of Jerusalem, a few minutes walk from where he lived. Decades of massive Golden Books are displayed there.