Here is a quiz. How many public libraries are there in Nai? I can only name National Library on Upperhill and I don't even know of any others outside Nai. And yet Kenyans do like to read just going by the way they go thru the daily newspapers (not a good measure but as a good as an indicator as any). I think the main reason Kenyans don't read much as they'd like to is because of the trade-off. Between buying a book costing Ksh50+ even in Gikomba vs Safaricom credit or even Unga. Book-reading is an expensive affair.
And yet, I remember when I first landed here, I was told my composition was terrible (some people say it still is. And the cure was to read as much stuff as I could get hold off. I joined the local library and whenever I have moved within the UK, I've joined the local library within a short period of time.
More than better composition, reading also can improve comprehension a necessary tool for us Kenyans to debate better.
So how about setting a public library system initially in the major towns. This can be done as a social venture or even straight up business venture. You lend readers books either a guarantor system (Ojera being a member of the Library will act as a guarantor for Mugambi who he has recently introduced-if book is lost Ojera foots the replacement bill).
Failing that, organise book clubs where readers bring books to a central repository and borrow others. So if you bring 5 books, you can borrow another 5 though all done one at a time.