Reverse Design: Chrono Trigger has an ebook version too. It's a high-quality, typeset PDF with better image quality, a much nicer layout, and some extra features. This version comes with a preface, a very robust index for searching topics, and proper citations if you're looking for that. It's less than $2, and the proceeds from these books go directly toward making more forum content like Reverse Design: Chrono Trigger, which took many hundreds of hours and for which we continue to be wildly underpaid.
Click here to go to the purchase screen. There are preview images below. Note that these jpegs are lower-res than the actual book.