I dreamt about an amazing college Russian textbook, with things like samples of written Russian throughout history, and sidebars comparing Russian with other Slavic languages, and sections on specialized forms of Russian like legal language and newspaper writing. And it was printed in full colour, with lots of photographs and interesting design elements.
Maybe my subconscious needs to get out more, but I really wish that book were real.
(This was actually only the tail end of another dream, but I don’t remember the rest of it, alas.)