The current version, Šolar 3.0, contains 5,485 texts written by Slovenian secondary school students (15-19 years old) and primary school students in grades 7-9, with a small percentage from grade 6. For each text, information is given on the school (primary or secondary), the subject, the level (grade or year), the type of text, the region and the year of production. The majority of the corpus is made up of essays, but there are also other texts produced in the classroom, such as summaries or descriptions of texts, examples of formal applications, etc. More information about the Šolar 3.0 corpus can be found in this scientific paper.

Part of the corpus (2,094 texts) contains teacher corrections, which are also classified according to the content classification system described in the annotation guidelines (the guidelines are in Slovene). The annotation of the corrections (there are more than 35,000 corrections in the corpus) is more detailed than in other similar projects, which is useful for the preparation of teaching materials, tools for machine correction of Slovene texts, etc. The corrections, as authentic examples of giving feedback for the development of writing skills, are valuable for the training of future teachers, linguistic-didactic research, etc.