Ways in which C(X) mod a Prime Ideal Can be a Valuation Domain; Something Old and Something New -- Positivity in Operator Algebras and Operator Spaces -- Results in f-algebras -- Bilinear Maps on Products of Vector Lattices: A Survey -- Vector Measures, Integration and Applications -- The Role of Frames in the Development of Lattice-ordered Groups: A Personal Account -- Non-commutative Banach Function Spaces -- Positive Operators on L p-spaces -- Regular Operators between Banach Lattices.