About the Author Dr. Helen Pilcher is a science writer based in the UK. She has written for Nature, the Guardian, BBC Focus and New Scientist. She has a Ph.D. in Cell Biology from the London Institute of Psychiatry and ran the Royal Society's Science in Society Program before becoming a full time writer. About the Publisher In the 1930s, Manuel H. Barron opened a bookstore in Brooklyn, New York. People from the community asked Mr. Barron about books that might be available to help their children study for the New York State Regents exams. After realizing there wasn't anything available, Mr. Barron created his own study guides. 80 years later, Barron's has helped millions of people prepare for their next step.