The data presented in this combined report--"Rankings & Estimates"--provide facts about the extent to which local, state, and national governments commit resources to public education. Part I of the report--"Rankings 2006"--provides state-level data on an array of topics relevant to the complex enterprise of public education. In addition to identifying emerging trends in key economic, political, and social areas, the state-by-state figures on government financing, state demographics, and public schools permit a statistical assessment of the scope of public education. Part II of the report--"Estimates 2007"--provides projections of public school enrollment, employment and compensation of personnel, and finances, as reported by individual state departments of education. The state-level data featured in "Estimates" permit broad assessments of trends in staff salaries, sources of school funding, and levels of educational expenditures. (Contains 137 tables and 8 figures.)