PG texts seem to be distributed to readers by a number of different channels. In a sense, PG has become the dominant wholesaler with a number of retailers. And they also provide direct distribution. Source texts are provided to PG by DP (with trivial exceptions) in two formats: plain text and HTML. But PG and other mediators distribute ebooks in a variety of different formats; and given the variety of devices, readers are requiring a number of other formats. This will if anything be increasingly true. But all these ebook formats must somehow be derived, through one or more transformation processes, from one or the other of the two originals. Here are my naive, uninformed perceptions of the trends of what's happening among four different segments: Untransformed plain-text, transformed plain-text, untransformed HTML, and transformed HTML. 1. The number of readers who read ebooks using the original plain-text versions, distributed directly or indirectly, are a significant but declining proportion of the whole. 2. The number of readers who read ebooks using the original HTML versions, distributed directly or indirectly, are a significant proportion of the whole, not declining as rapidly, but still declining (because they require a real browser and a large-enough screen to read them with any level of fidelity.) 3. Some proportion of readers are reading ebooks derived from plain-text versions but transformed using some kind of software to infer formatting. I suspect this proportion is declining as well, but it's hard to do and the readers are increasingly expecting more from ebooks from their increasingly sophisticated devices. 4. So that leaves the rest, who are reading ebooks derived from the original HTML versions. My suspicion is that the majority of ebooks are already provided this way, and (especially with the increasing acceptance of de jure and de facto sub-html standards,) this will only increase. How accurate is this assessment? Based on the distribution among the quartiles, should PG and DP make any changes in the way ebooks are prepared and supplied?