In the 10 new stories featuring siblings Mara and Timo, themes include Christmas, skiing, baking cakes, summer vacations, and much more. While the stories in Level A are written phonetically and letter-for-letter, Level B introduces "stumbling blocks" in reading. Here in Volume 5: consonant combinations (ch, sch, ck, st-/sp.). A small visual aid highlights the sound unit, helping to read more fluently. In the final story, the aid is removed, allowing the child to experience reading without assistance. Small exercises complement the reading books.