Style guide compliance refers to how well a text adheres to the rules and writing standards of a specific house style sheet or manual of style. It is an important step to ensure consistency across a text with respect to choices about formatting, punctuation, numeral and bullet point usage, acronyms, unusual spellings, and regionalisms, among other concerns. Style manual observance may be thought of as more rigorous in the professional (e.g. AP, AMA, Bluebook, OSCOLA, IEEE) and academic (e.g. MLA, Harvard, Vancouver, Chicago & Turabian) domains, where it dictates the composition and content of citations, references, and endnotes, but it also plays an important role in creative writing. An editor can work with a client to design a style sheet tailored to the project at hand.