A collection of tools and macros, including Inside LaTeX2e kernel, stfloats, page styles for floats, stabular, even columns at end of twocolumn region, switching between one- and two-column anywhere, getting more mileage from \marginpar, midfloat, create a bounding box, marginal, and texsort.

The authors are Sigitas Tolušis and Vytas Statulevičius.