Ceramic storage tech

[विश्वासो वासुकिजः (Vishvas Vasuki)]

namaste from India, 

My interest is in preserving critical texts for future generations (who, unlike MOM's assumption, would not be as technically capable as us). How can we learn more about the attractive ceramic (and other?) technology you use to save text and images ?

Background thinking - 

The post-oil, post-industrial-age world will arrive (details TM), with much unrest, by 2160 (or 2260 if ice-methane extraction works out). Lack of fertilizers will lead to famine and a big drop in population. Raw materials like plastics, copper, and lithium too will be rarer. Machines - let alone computers - will be scarce. So, electronic data will be ephemeral.(5)

How then to best preserve our knowledge (physical and spiritual) and texts?

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Vishvas /विश्वासः

[विश्वासो वासुकिजः (Vishvas Vasuki)]

As an update to those interested, some of what I learned offline - 

For one off texts, it can cost 40$ for a copy plus shipping from EU. ("the smallest text size is 4 pt in Arial style. It is the still readable with the naked eye. the capacity  (of latin letters) is about 40 000 characters on the 20x20 cm surface of a MOM tablet.")

For the whole lot, or a big chunk of it (say 10k books, with 500 pages each) - not sure - thread went cold. ("I developed a technology to write 1 mio characters in the 20x20 surface on 1 mm thick extreme robust special ceramic plates. This was half way during the development of the Cerabyte technology and we also patented this as a kind of ceramic microfilm. The text could be read by a 10 times magnifier.")

 

Related - https://users.ox.ac.uk/~wolf2728/Clay/index.html?ref=longnow.org