Roberta Karlsson och kungen is a 1983 Viveca Sundvall children's book[1] in the Mimmi series.
Written as a diary, it is set between 8 June-16 July the year Mimmi has summer vacation between first and second grade.
Together with En ettas dagbok and Vi smyger på Enok they were later all released in a collection called "Mimmis bok".
At Albin, her uncle at her mother's side, she meets Lasse.
In Gothenburg Roberta Karlsson states that she has met the king of Sweden.