A biography book is a written work that is compiled based on factual events about a person's life, but writers are often faced with the choice of how to represent the reality surrounding the characters they are telling. In the process of writing, a writer not only gathers facts, but also interprets and highlights certain aspects of the character's life. This can be seen through the way language is used, including standard markers, which reflect the author's attitude and position towards the facts raised. This research aims to analyze the author's attitude towards this reality, as reflected through the use of stationary markers in the biography of President Abdurrahman Wahid (Gus Dur) by Greg Barton. This study uses a descriptive qualitative approach with a content (text) analysis method. The source of research data is in the form of Gus Dur's biographical text which is analyzed by referring to five categories of standard markers, namely hedges, boosters, attitude markers, self-mentions, and engagement markers. Each category provides an overview of how the author conveys an argument, expresses an attitude, and builds a closeness with the reader. The results of the study show that the use of boosters dominates, which illustrates the author's firm attitude in emphasizing facts and assessments of Gus Dur. In addition, the word "like" is found 253 times and serves as a means of building common knowledge and creating an inclusive delivery style. This analysis also shows that Greg Barton tried to maintain a balance between scientific objectivity and personal closeness to the characters he wrote. This research has relevance in Indonesian language learning in high school, especially class X, because biographical texts are part of the teaching material. These findings can be used as evaluation and learning materials about the author's language style, as well as helping students hone critical reading skills and writing narrative discourse by understanding the meaning behind the language choices used.