Tim Collins, PhD, has worked in the field of education for more than four decades, instructing learners of all ages and backgrounds. For more than 25 years, he has specialized in materials development for the GED(R) exam, and has helped countless learners prepare for and pass this life-changing tes...

Tim Collins, PhD, has worked in the field of education for more than four decades, instructing learners of all ages and backgrounds. For more than 25 years, he has specialized in materials development for the GED(R) exam, and has helped countless learners prepare for and pass this life-changing test.