Book review Hi, could you please correct this text and tell how you see for the C1 writing exam? Thanks! "Demon haunted world" is a book written by the famous American astronomer Carl Sagan at the end of the 20th century. It is another example of the scientific communicator's ability to spread science knowledge among ordinary citizens, helping them be more prepared to cope with theories and ideas that are not borne out and which pose a threat to society. In the first part of the book, the author looks deeply into the many ideas, schemes, swindles, etc. which have been present in human life for centuries and have never been supported by evidence. One example that is mentioned is the witch hunt typical during the medieval years whhich led to the death of thousands of innocent women accused of possessing wicked powers that they clearly did not have. These acts undertaken without supportive evidence played at the hands of malicious people who wanted to see these women executed for some reason, such as to get their own back as a result of disputes between families. During the rest of the book, Carl writes down thoroughly how the scientific method, based on skepticism and the search for the truth, has helped humanity overcome those unfair acts which have made so much damage to progress for so much time. Nevertheless, he warns against being complacent nowadays as the threat from the unfounded, dangerous beliefs are always there ready to come up and inflict harm and damage. The use of lead is taken as a recent example where fraudulent scientists, paid by the industry, tried to show that this material was not a risk for public health whereas independent studies were finding out just the opposite. As far as I am concerned, not only has this book made people aware of how important science has been in the past to turn down wrong ideas and beliefs but it also gives its readers the necessary tools to differentiate between real and fake facts. It seems to me that, after two decades of being published, this masterpiece may really come in handy to face the present reality.