It was a debate that Dr. Barbara Castro knew she would eventually face as a biology teacher: Creationism vs. Evolution. Evolution in public schools had become commonplace curriculum when Barbara first began teaching, but having skipping the lesson with students for years, she decided it was time for individual research on evidence of Evolution in comparison with her Bible-led knowledge. The result is her new book, Creationism vs. Evolution, which is a helpful guide for Christian parents' education on teaching children evolution and God. Her discussion begins with a study of the Big Bang Theory, in contrast to the Bible's Genesis as creation of Earth: expanding there to the basic laws of thermodynamics, DNA and heredity, and findings from Gregor Mendel and genetics. The ultimate discussion on Charles Darwin and his belief in transmutation species is Barbara's chief reasoning that God created the Earth and mankind, thus how life began.