Tunic is a game following in the tradition of Fez, The Witness, and The Outer Wilds. Knowledge is your greatest asset in these games, and as such, the translated text here represents an end-game level of information not meant for someone just starting out.
You can complete Tunic without being able to read the text translated in this guide, and I would suggest as much. The pages of this manual are filled with information that can be intuited from the pictures and keywords and maps, and handwritten notes. The translation here should be an end cap to your first playthrough if you don’t have the time or desire to translate it for yourself.