hans aberg asks, In the past, it was mentioned literature describing (traditional) typesetting rules of mathematics. But unfortunately, I did not copy those references, and from time to time, I encounter people who want to know. Could somebody be kind and indicate some references to such literature to me? attached is the list i send out whan anyone asks. i also know about an issue of the Monotype Recorder that has an article by Arthur Phillips on the subject, but since i haven't yet been able to get my hands on a copy, it's not included here. -- bb -------------------- These four books are entirely about the composition of mathematics: T.W. Chaundy, P.R. Barrett and Charles Batey The Printing of Mathematics Oxford University Press, London, 1954 (third impression, 1965) Karel Wick Rules for Type-setting Mathematics Publishing House of the Czechoslovak Academy of Sciences, Prague, 1965 Ellen Swanson Mathematics into Type American Mathematical Society, Providence, RI, 1971, revised 1979 updated 1999 by Arlene O'Sean and Antoinette Schleyer The original edition is based on "traditional" composition (Monotype and "cold type", i.e. Varityper and Selectric Composer); the 1979 edition adds material for computer composition, and the 1999 edition mostly assumes TeX or a comparably advanced system. Mathematics in Type The William Byrd Press, Richmond, VA, 1954 The following books contain material on mathematical composition, but it is not the principal topic covered: The Maple Press Company Style Book York, PA, 1931 (reprinted 1942) contains sections on fractions; mathematical signs; simple equations; alignment of equations; braces, brackets and parentheses; integrals, sigmas and infinities; hyphens, dashes and minus signs; superiors and inferiors; ... A Manual of Style, Twelfth Edition, Revised The University of Chicago Press, Chicago, 1969 A chapter "Mathematics in Type" was produced using the Penta (computer) system. The TeXbook is the manual for Donald Knuth's TeX composition system: Donald E. Knuth The TeXbook Addison-Wesley, Reading, MA, 1984 Appendix G describes the somewhat idiosyncratic mechanism used by TeX to accomplish the composition of mathematical notation; it is based on the principles laid out in the first three books above, as well as on examination of a large number of published samples that demonstrated Knuth's style preferences. All but the Swanson, Knuth, and Chicago are out of print, but can probably be found through a bookseller specializing in typography and design.