The course format for CS4984 is thus an adaption of PSI, making use of digital library support, and adjusting for the situation at Virginia Tech in Spring 1995. The main elements of this Digital Library Personalized System of Instruction (DLPSI) are given below. Students should read these explanations carefully, and ask about any questions that come to mind. Remember that improved reading comprehension is a key objective of this course, but that the instructor is happy to provide tutoring assistance to all students as needed.