This volume constitutes the proceedings of the second biannual conference of the International Society for Theoretical Psychology (see Epilogue) held in Banff, Alberta, Canada, April 20-25, 1987. Thirty-nine papers were presented during the four days of the conference including an invited address by Kenneth Gergen. Unfortunately, even after severely restricting the length of the written papers, the required limitation on printed space permitted only 34 of these to be included in these proceed­ ings. While most of the papers required editorial adjustment, the authors had final word on style and content. The classification of conference papers tends to be somewhat arbi­ trary' but we decided to