I'd love to hear about it. I hope I can keep up, of course, but I'll absorb what I can.
All right. To some extent, I'm doing this from memory as my copy of the book is in my other office (or possibly in a box somewhere). But basically, what Berlin and Kay studied were the cross-linguistic properties of "basic color terms."
These are defined as single words that describe colors, with the following three properties.
1. the words are monomorphemic, meaning you can't break them apart into meaningful sub-units (which rules out words like "blueish-gray").
2. the words are not the names of any objects they purport to describe (which rules out "teal," "olive," and "cornflower").
3. the words are universally applicable across domains (which rules out words like "roan"," which can only be used to describe a horse).
In English, there are (IIRC) eleven such basic color terms:
black, white, red, yellow, green, blue, brown, purple, orange, pink, gray
However, this number is not "universal" -- many languages do not have words for all of these distinctions. What does seem to be universal is the hierarchical ordering of these words, which is to say, if a language has one of these terms, it will have all all of the terms to the left as well. No language, for example, has a word for blue, without having words for black, white, red, yellow, and green -- but a language might have words for green and yellow without having words for blue. (Japanese is such a language.)
So we've got clear evidence that color
naming is, in fact, language-bound. However, Berlin and Kay did a number of other experiments, and found that there is no relationship between color
naming and color
perception. People had no problem distinguishing (or even describing) different "color," even when the same basic term was used in their language. The classic and off-cited example is from a language that had only three color terms -- black, white, and red -- but yellow things were distinguished from red things by being "red like banana." English-speakers do the same thing; we have "sky blue" and "navy blue" and "royal blue" and "midnight blue."