You can now read The Amazon Builders’ Library in 16 different languages: Arabic, Indonesian, German, Spanish, Italian, Portuguese, French, Vietnamese, Turkish, Russian, Thai, Japanese, Korean, Chinese Simplified, Chinese Traditional, and the original English. To change to your preferred language, select the language in the upper right hand corner of your screen. 

from Recent Announcements: https://aws.amazon.com/about-aws/whats-new/2020/01/the-amazon-builders-library-is-now-available-in-16-languages/