The oeuvres of ‘crosswriters’ or ‘dual audience authors’ who write for both children and adults form the perfect touchstones for research on the similarities and differences between children’s literature and literature for adults. By means of stylometry, a digital research method that aids in studying style, the works of ten Dutch and English language dual audience authors were examined. Are there similarities to be found across the oeuvres of these authors? And are there differences within one author’s books that are targeted at different age groups? To research these questions, the target audience and the publication date were factors that were taken into account. By including interviews with the authors, the researchers also considered the writers’ views on style and readers. The main conclusion drawn from the case studies is that the style of the texts usually correlates more strongly with the age of the intended reader than with the time period in which the texts were written. In other words, books for young readers share more similarities than those for adult readers.