Single case research is proposed as a valuable means of involving counselors in the research process, providing feedback to the counselor and supervisor and gathering accountability data. Yet relatively little research of this type is conducted. One reason for this paucity of single case research is a lack of familiarity. If one is familiar with single case research, it is usually with case study methodologies and not with the intensiveNof 1 designs. The purpose of this article is to familiarize the reader with the two major types of intensiveNof 1 designs: experimental and association. Several different examples of each are presented in hopes of stimulating usage.