My knowledge of macroeconomics is limited to what I learned during Econ 101 at NYU and the lessons that were covered in the material I was required to readin order to complete the demanding CFA program.
And they raise most of the money to pay for the books. (Only about a third to a half of the book funds come from matching funds provided by the national Reach Out and Read office.) The program works because it is rooted in individual responsibility: the responsible behavior of parents who, who once they understand the importance of reading to their young children, do so.