Handbook of Writing for the Mathematical Sciences provides advice on all aspects of scientific writing, with a particular focus on writing mathematics. Its readable style and handy format, coupled with an extensive bibliography and comprehensive index, make it useful for everyone from undergraduates to seasoned professionals. This third edition revises, updates, and expands the best-selling second edition to reflect modern writing and publishing practices and builds on the author’s extensive experience in writing and speaking about mathematics. Key features:coverage of fundamentals of writing, including English usage, revising a draft, and writing when your first language is not English; thorough treatment of mathematical writing, including how to choose notation, how to choose between words and symbols, and how to format equations;many tips for exploiting LATEX and BibTEX; advice on how to write and publish a paper, covering the entire publication process; and anecdotes, quotes, and unusual facts that enliven the presentation. The new edition: has been reorganized to make the book easier to use for reference; treats modern developments in publishing such as open access, DOIs, and ORCID; has a new chapter on workflow covering text editors, markup languages, version control, and much more; has a new chapter that discusses the principles of indexing and how to prepare an index in LATEX; has a new chapter on reviewing a paper, book proposal, or book; has a new chapter “Writing a Book” that includes advice on choosing a publisher and LATEX tips particular to books; contains more on poster design, and discusses e-posters and the poster blitz; and has a new chapter giving advice on writing a blog post.