Robert Heinich. Dr. Heinich is Professor Emeritus in the department of Instructional Systems Technology (IST), Indiana University. He is now retired from active teaching, having served on the faculty since 1969 following completion of his doctorate at University of Southern California and a stint as multimedia editor for Doubleday Publishing. Prior to that he built a nationally prominent media program at the Colorado Springs school district. Bob has been an active leader in the field of educational technology for four decades, serving as president of the Association for Educational Communications and Technology (AECT) in 1971-1972 and as president of AECT''s foundation from 1972 to 1982. He was editor of AECT''s scholarly journal from 1969 to 1983. Indicative of his professional contributions, Dr. Heinich has received the Presidential Citation of the International Society for Performance and Instruction and the Distinguished Service Award of AECT. At Indiana University he served as chairman of the IST department from 1979- to 1984. His many articles and monographs provide some of the major theoretical underpinnings of the field. The University of Northern Colorado honored Bob with their Trail Blazer Award as an outstanding alumnus. He is currently president of the Old Colorado City Historical Society in Colorado Springs, where he now fives. Michael Molenda. Dr. Molenda is Associate Professor in Instructional Systems Technology (1ST) at Indiana University. He received his Ph.D. from Syracuse University and taught at University of North Carolina at Greensboro before joining Indiana University in 1972. He designs and teaches courses in Media Applications, Instructional Development, Evaluation and Change, and Instructional Technology Foundations. Mike served as chairman of the IST department from 1988 to 1991. He has lectured and consulted extensively on educational technology in Spain, the Netherlands, Indonesia, Korea, Swaziland, and several countries in Latin America and the Middle East. Among his professional distinctions are selection as a Fulbright Lecturer in Peru in 1976, membership on the Board of Directors of AECT, 1988-1991, and presidency of AECT''s International Council, 1978-1979. Dr. Molenda''s breadth of knowledge of the field of educational technology is indicated by his authorship of articles on educational technology in elementary and secondary education and instructional technology for recent editions of international encyclopedias of education. Since 1997 he has co-authored an annual survey of issues and trends in educational technology for Educational Media and Technology Yearbook. James D. Russell. Dr. Russell is Professor of Educational Technology at Purdue University. During spring semesters he is visiting professor of Instructional Systems at Florida State University. A former high school mathematics and physics teacher, Jim teaches courses on Media Utilization, Instructional Design, Instructional Delivery Systems, and Principles of Adult Education. He was honored as his department''s Outstanding Teacher in 1993 and with the School of Education''s Best Teacher Award for 1996. Jim works part-time for Purdue''s Center for Instructional Excellence, where he conducts workshops on teaching techniques and consults with faculty and graduate assistants on instructional improvement. His specialty areas, in which he has achieved national prominence through his writings and presentations, are presentation skills and using media and technology in classrooms. Because of his commitment to remaining close to the real world of teachers in the classroom, Dr. Russell serves as co-director of the Technology Integration Project, the purpose of which is to improve students'' achievement and attitudes in math and science. As part of this project he conducts daylong workshops to train teachers as facilitators to work with other teachers to implement technology in their classrooms. Through these workshops and this textbook, Jim continues to make a significant impact on classroom teaching practice. Sharon E. Smaldino. Dr. Smaldino is a Professor of Educational Technology at the University of Northern Iowa. Sharon received her Ph.D. in 1987 from Southern Illinois University, Carbondale. Prior to that she received an M.A. in Elementary Education and served for more than a dozen years as teacher, speech therapist, and special educator in school districts from Florida to Minnesota. At Northern Iowa she teaches an introductory :educational media course for undergraduates and graduate majors and is coordinator of the Educational Technology program. Dr. Smaldino also teaches graduate courses.in Instructional Development, Instructional Computing Design, Desktop Publishing, and Selection and Integration. She is the recipient of the UNI 2000 Outstanding Graduate Teaching Award. Presenting at state, national, and international conferences, Sharon has become an important voice on applications of technology in the classroom and in distance education. In addition to her teaching and consulting, Dr. Smaldino has served as president of a division of AECT, served on the board of directors of IVI.A and AECT, and has written articles for state and national journals on her primary research interest, effective technology integration in learning. She is working on a Preparing Tomorrow''s Teachers to use Technology (PT3) grant using the Web to deliver information and case studies of teachers using technology in schools.