Unfortunately, popular books on blockchains contain a lot of information that just isn nott true. For instance, they tell the reader that blockchains like Bitcoin use encryption, that blockchains (by preventing double-spends) can guarantee the uniqueness of assets generally, and that decentralization is what prevents tampering with blockchain records. But we really need the general public to understand the basics of blockchain technology, for a few reasons: 1) the better they understand, the less likely they are to fall for scams, and 2) the better they understand, the more empowered they are to innovate and create new businesses and communities using their specialized non-blockchain knowledge. But this is a public goods problem, because it takes a significant amount of effort to educate, and educational efforts are subject to free-riding by competitor companies. However, I do not think the issue is insurmountable. We can incentivize knowledge in the general public by creating concrete, useful products that use individual "pieces" of blockchain technology, such as hashes, digital signatures, and tamper-evidence logs. When people get experience using these concrete products that help them in their everyday lives, they are much more likely to understand (and to want to understand) blockchains as a whole. I can explain what I have been building, and how I think other people can build similar concrete products.