None are sorted by color; a couple are arranged in some fashion making sense only to their authors, one's sorted in something passing for 'chronologically', and a few are loosely typed by family (feline, canine, etc). The rest are just alphabetical- or, in one case, translated unthinking from another language, and ordered by that alphabet instead.
Well, she knows she's not going to pass for feline or canine. She looks and looks and looks. Come on, something has to be blue, right?
She pauses on the wyverns. She doesn't want to say yes that's me in case these are extinct too, but they're a very good fit. She looks at Alli for guidance.
Alli has been distracted paging through a book, clearly one of a series with its neighbors, which appears to be a mystery thriller- or possibly a trashy romance- or perhaps both? In any case, she puts the book down when she sees May looking at her and wanders over. "See anything familiar?"
And this way May can admit to her wings. Bonus points for that.
"Looks pretty close," she says cautiously. "You part English or Welsh somewhere?"
"Not that I know of, but I didn't know I was part reptile, either. I don't suppose there's a Japanese variant?"
Alli glances towards the front of the shop. Miss Viv has retreated, presumably to keep her trailing puddles from accumulating too close to her bookshelves. Talking- reasonably safe if she's quiet, but she shouldn't push it, she decides. "I've seen Japanese... critters like that... but I don't think they have wings. Claim it farther back, maybe?"
"I have no idea how far back it'd be. Since I didn't know I was a thing. But I could be an eighth or a sixteenth white on Dad's side and wouldn't necessarily know."
"Maybe I'm missing something about Japanese names here, but. Aren't you pretty definitely part white somewhere, Mlle. Swan?"
"I don't know where my last name came from, but there's no strong reason to expect that it was from a white person instead of from a transliteration, translation, or deliberate name change somewhere along the line."
"Oh, right. Those are things. Well, you're still named Mabel Swan. You can probably get away with it."
"Meh. Go for it. Not a lot of alternatives." She eyes the picture in the book. "Just remember the two legs thing, yeah?"
"Yeah. I guess I'm slightly more bipedal than I let on to Emma. Well, the joke still works."
"I think I'm a wyvern. I'm going to look through the magic book now that's sorted."
"I've budgeted mostly for magic books and want to see more about what's in them before I pick, but thank you very much for letting me have a look at the critter books."
May looks through indices and tables of contents and randomly chosen pages, and eventually she has a set that fit within her budget and seem like they'll get her from point A to point B without being intolerably boring or letting her wander carelessly into any explosions. These she purchases.