Science textbooks: Used to help inform reader on scientific discoveries, theories, etc.
Biographies: Used to help inform reader on the certain individual in which the biography was written for. Usually the biography is on someone famous from history.
Newspaper articles: Newspaper articles generally inform readers of events happening. However you must not most of it is subjective.
In the beginning of the book it is kinda tense/ intense.<span>The entire period from the time he wakes up until Grete's violin solo and his death is one long battle to adjust to his new body </span>