Cataloguer. A profession for which the ideal qualification is to know everything in the universe. I'm working on it ...
Fascinating and packs a lot of info into its mere 144 (heavily illustrated) pages, thus proving that concise and plain language is a far better and efficient use of one's text space than showing off with unnecessary syllables and flowery phrases. An excellent beginner's introduction to exactly how snow crystals form and then become snowflakes or one of a myriad of other forms of particles that make up snow. Also includes instructions for capturing and "fossilizing" snowflakes to prevent them melting (hint: involves glass slides and superglue) and photography tips, plus how to make synthetic snowflakes in a chest freezer.
And the photographs! Incredible, beautiful photographs! Even if you don't read a word of this book, it's worth having just for the photographs.
Authors have created Snow Crystals.com which also contains a lot of info and gorgeous photos (some from the book). You'll never be able to look at snow the same way again.