Each Prismatext book introduces new words gradually. New translations appear as old ones become more familiar. You’ll never be swimming in dozens of unknown translations at once.
And here's a little secret: each book contains hundreds more than 250 translated words, but those are just the ones on which we focus extra hard. We want to be able to show those words off in a variety of iterations and phrases, so you could very well push 500 unique words with each book!