Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Normally, I read contemporaries but this series drew me in. Ayla struggles to live when ice sheets were retreating from Europe. She's raised by Clan, people who communicate with body language more than vocals, and makes many mistakes on her way to adulthood. Jean Auel's research at times intrudes but mostly this is a story that completely transports the reader to a long ago time where you root for the heroine and feel the fear and trauma along with her. My bookshelves are few but this series has designated space because I revisit favorite scenes often.
Positive