The subject of this study is engineers’ activities, writing and texts in their profession and education. Fieldwork for the study was conducted in three professional workplaces and a major technical university (called Tekniska Institutet in the study). The aim of the study is to explore what kind of writing the engineers are supposed to handle and practice, situated in their professional environment, and to compare this with the writing practices and texts engineering students are prepared for in their higher education. The theoretical framework is a sociocultural approach inspired by Lave & Wenger (1991), Wenger (1998), Wertsch (1998) and Engeström (1987). The theoretical concepts of activity systems, mediational means or cultural tools and trajectory of practice are applied, partly on a linguistic level, to the writing and the work that engineers carry out in their professional community and the university. The engineers in the study write every day in their profession, in different roles, something they are not quite prepared for in their higher education. The study examines whether there are cultural tools that are typical for engineers and their work. One central construction is the list, which can be seen as a cultural tool on both a cognitive and a social or communicative level: the study shows that the list is used both to structure or construct content and to instruct readers, for example, or show them how a soft ware system or a computer programme is structured. The list is also used within the education community, in teachers’ instructions and course material as well as in the students’ texts, such as lab reports and different types of essays.