Hi Penny,
Welcome to the Forum.
These manuals are excellent, and I recommend all owners have one.
They are 'official' translations performed by a company authorised by Toyota. However
They are Owners Manuals, not a Maintenance Manual.
They cover operational issues, what all the buttons, bells and whistles do.
For example, although they contain information on what (Toyota) fluids to use, they do not explain how to change them
Make sure you get the Hybrid version, which has about 50 pages covering the Hybrid.
The rest of the text is the same as for a non Hybrid.
For Ali's benefit, they do not state the emissions.