What it means
LaTeX (pronounced lay-tech or lah-tech) is a typesetting system. Donald Knuth wrote the underlying engine, TeX, in 1978 because he was unhappy with how his own books were being set; Leslie Lamport added the LaTeX macro layer in 1984 to make it usable for ordinary documents. The author writes plain text with commands — \chapter{}, \emph{} — and the engine compiles it into a PDF.
What makes it unusual is how it breaks paragraphs. Most software chooses line breaks one line at a time; TeX considers the whole paragraph at once and picks the set of breaks with the least total "badness" (the Knuth–Plass algorithm), with hyphenation from language-specific patterns. The result is even word spacing that is hard to match by hand.
LaTeX has been the standard for mathematics and academic publishing for decades, and its consistency and automatic cross-referencing make it a strong engine for book production generally.
In Bindery
Bindery uses LaTeX under the hood for every book — that is where the even spacing, the hyphenation and the spine sized from the real page count in its proofs come from.
Make the book, not the checklist
Describe a book or upload a manuscript. Bindery writes with you, typesets in LaTeX, sizes the spine from the real page count and produces printer-validated files — the watermarked proof is always free.
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