Table of ContentsReview of general principles (G.R. Desiraju). Hydroquinone clathrates and diamondoid host lattices (T.C.W. Mak, B.R.F. Bracke). 1,3,5-benzenetricarboxylic acid (trimesic acid) (F.H. Herbstein). Helical host lattices formed by alicyclic diols (R. Bishop). Gossypol: a versatile host molecule (M. Gdaniec, B.T. Ibragimov, S.A. Talipov). Deoxycholic acid and related hosts (M. Miyata, K. Sada). Urea, thiourea, and selenourea (K.D.M. Harris, M.D. Hollingsworth). Tri-o-thymotide and related hosts (R. Gerdil). Cyclotriveratrylene and related hosts (A. Collet). A survey of hydrocarbon hosts: biaryls, polyaryls, allenes, spiranes and cyclophanes (P. Dastidar, I. Goldberg). Tetraphenylene and related hosts (T.C.W. Mak, H.N.C. Wong). Perhydrotriphenylene: a D3 symmetric host (M. Farina, G. Di Silvestro, P. Sozzani). Cyclophosphazenes: structures and molecular selectives (T. Kobayashi, S. Isoda, K. Kubono). Symmetry in the evolution of host design (D.D. MacNicol, G.A. Downing). Design of dialkynic diols and other new bifunctional hosts (F. Toda). Onium salt hosts (F. Toda, K. Tanaka). Shape and symmetry in the design of new hosts (E. Weber). Survey of other potentially important hosts (P. Finocchiaro, S. Failla). Supramolecular chemistry in cyanometallate systems (T. Iwamoto). Werner clathrates (J. Lipkowski). Porphyrin-based lattice clathrates: a molecular masonary approach to crystal engineering (C.E. Strouse, M.P. Byrn, C.J. Curtis, Yu. Hsiou, S.I. Khan, P.A. Sawin, A. Terzis). Infinite frameworks (R. Robson). Hydrate inclusion compounds (G.A. Jeffrey). Stoichiometry and thermodynamics of clathrate systems (Yu.A. Dyadin, V.R. Belosludov). Phase transformations in inclusion compounds, kinetics and thermodynamics of enclathration (M.R. Caira, L.R. Nassimbeni). Cystalline microporous silicas as host-guest systems (H. Gies, B. Marler). Crystal engineering in two and three dimensions (I. Weissbuch, R. Popvitz-Biro, S. Weinbach, M. Lahav, L. Leiserowitz).