Learning. Fundamental Problems (R. Boswell; W. Buntine; M. Lebowitz; W. van de Velde; M.W. van Someren). Analogy (C. Granger; S. Owen; L.F. Rau; K. Wellsch, M. Jones). Discovery and Human Problem Solving (W. Emde; K.W. Hasse Jr.; W.N.H. Jansweijer, J.J. Elshout, B.J. Wielinga; V. Jonckers; R.W. Lawler). Knowledge Representation. Foundations of Knowledge Representation (J. Barnden; W. Lukaszewicz; Y. Shoham; A. Sloman). Knowledge Representation Systems (G. Attardi; Ch. Benoit, Y. Caseau, Ch. Pherivong; J.-P. Briot, P. Cointe; H. Kauffmann, A. Grumbach; P. Maes; K. van Marcke). Logic and Deduction (G. Attardi et al.; S. Biundo; B. Duval, Y. Kodratoff; C. Froidevaux; J. Gallagher; D. Goossens; M.M. Huntbach; P. Jacquet, M.L. Potet; J. Pearl, A. Paz; J.H. Siekmann). Natural Language. (G. Adriaens; U. Hahn; P.S. Jacobs; M. King; O. Stock). Expert Systems. Expertise and Use of Deep Models (S.K. Andersen, S. Andreassen, M. Woldbye; W.F. Clocksin, A.J. Morgan; M. Gallanti et al.; B.J. Wielinga, J.A. Breuker; R.P. Worden et al.). Tools for Expert Systems (P.R. Cohen; P.J. Hayes; J. Jones, M. Millington, P. Ross; B.A. Nardi, E.A. Paulson; J.P. Sansonnet). Vision and Robotics. (A. Blake, A. Zisserman, A.V. Papoulias; H. Buxton, N. Williams; R. Horaud; C. Laugier, P. Theveneau; L. Massone, P. Morasso; E.P.K. Tsang; D.E. Wilkins). Concluding Visionary Paper (C. Sinclair).