The story-line is about first contact with aliens. Barlenan with his ship Bree finds a new race living in a planet Mesklin. Here starts the adventure of Barlenan and his crew with Mesklinities. Barlenan is mainly a merchant and wants to know the knowledge of Mesklinities. At first they are reluctant to share it with him. However, at long last they all came to reasonable agreement.
A wonderful novel. You’ll find a good deal of pure scientific knowledge mostly of chemistry. About hydrogen atmosphere, oxygen, chlorine their physical features and chemical compounds etc. I have to say one thing. This book requires a good concentration. So if you don’t have it, I recommend after having read a page, read it once more. I did! )))