Allan G. Bluman taught mathematics and statistics in high school, college, and graduate school for 39 years. He received his Ed.D. from the University of Pittsburgh and has written three mathematics textbooks published by McGraw-Hill, as well as the hugely popular Pre-Algebra Demystified, Probability Demystified, and Math Word Problems Demystified. Dr. Bluman is the recipient of an "Apple for the Teacher" award for bringing excellence to the learning environment and the "Most Successful Revision of a Textbook" award from McGraw-Hill. His biographical record appears in Who's Who in American Education, 5th edition.