I’m bringing Jeanine’s comment up to the top because I think she asks a great question.
I’m wondering what editions other readers of this blog have? I have the yellow paperbacks; I found a blue set (neat to know the origin of those now) at a used bookstore for my older daughter; and about 10 years ago (before she was even old enough to read!) I ordered the coloured gingham set from Scholastic for my younger daughter. We love that we all have our own sets (mine are rather tattered!).
I’ll answer for my part. My experience matches Jeanine’s almost exactly. My paperbacks from childhood were yellow. When I bought them for my daughter, I had no idea how she’d treat them (or whether she’d really like them) so I bought a used blue set in a cardboard holder on eBay. This is also the set that I use for research and my own reading, much to the consternation of my daughter. (I tried to bring one of the yellow books on vacation one time and the thing started shedding pages on the plane. I haven’t tried to read from that set since!)
What say you all? Do you have separate sets for reading and research? Do you have any Sewell books? (I do not.) Which are your favorites?