Memory Alpha is probably the fastest reference to consult, though some information there isn't always sourced with specific episodes. That's where I got the mention of the book. You can find all sorts of details on a variety of topics you might be interested in. It looks like there are some different languages the info can be displayed in, if English isn't your native tongue.
Thank for link,
My English not my language, BSL is my language which mean British Sign Language.