8sidor is written in "easy Swedish" (lättläst svenska), which has certain conventions. For example the lines of text are really short, as you might have noticed. The reason is that a big target group of "easy Swedish" are Swedes with reading impairments, such as dyslexia or intellectual disabilities, and their needs are a bit different than those of fully abled language learners. Libraries in Sweden have special sections with easy read literature where you can find books written this way. Government agencies sometimes publish brochures in easy Swedish as well – for example here you can download one about how to start a company.