The book's theory is that success starts by first focusing on productivity of agricultural land, to maximize output, not profit. To accomplish that, you need lots of farmers who are motivated to maximize output, which means land distribution so that farmers are working for themselves, rather than as laborers where the landowner takes all. Once there is a broad base of farmers, and the country has food sovereignty, limited import funds can't be drained away just to make sure everyone is fed. And once there's a broad farming base, that is accumulating savings, that means that 1) banks can start making loans for the beginning of industry, and 2) there's a strong farmer consumer base that can be customers of this early industry.
Countries like Japan, Taiwan, and South Korea that practiced land reform to wrench land away from idle landlords and distribute it widely, have had this success. And countries that feigned it, like the Philippines, have struggled in comparison.
Land really is different from capital, there's a finite amount of it, whereas more capital can always be made. Redistributing hoarded land should be a primary function of government, or at least a government that wants to grow the economy, rather than grow wealth inequality.