English: This presentation for colleagues from the KB, national library of the Netherlands, answers two questions: 1) Where and how often have KB collection images been used in (all language versions of) Wikipedia in 2023? This is based on the previously published article Reuse indicators for KB images in Wikipedia and Wikimedia Commons, the 2023 update (January 24, 2024) 2) Where and how often have source references to KB services (such as Delpher, DBNL or KB website) been used in the Dutch Wikipedia in 20203? This is based on a data analysis that has not yet been published (as of January 31, 2024). The first results of this analysis show that at the end of December 2023 Dutch Wikipedia contained 119,978 unique URLs to KB services, in 71,002 unique articles, which were requested 76.9M times in the last 4 months of 2023 Nederlands: Deze presentatie voor collega's van de KB, nationale bibliotheek van Nederland, geeft antwoord op twee vragen: 1) Waar en hoe vaak worden KB-collectiebeelden in (alle taalversies ... : Key TakeawayThis presentation discusses the use of KB collection images in (all language versions of) Wikipedia in 2023 and the utilization of source references to KB services in Dutch Wikipedia in the same year. Summary* The presentation is aimed at colleagues from the KB, the national library of the Netherlands, and addresses two main questions: 1. How frequently were KB collection images used in Wikipedia in 2023 across all language versions? 2. What is the extent of source references to KB services (such as Delpher, DBNL, or KB website) in Dutch Wikipedia in 2023?* The analysis for the first question is based on a previously published article titled "Reuse indicators for KB images in Wikipedia and Wikimedia Commons, the 2023 update" released on January 24, 2024.* The analysis for the second question is based on data analysis, which had not been published as of January 31, 2024.* The initial results of the analysis indicate that by the end of December 2023, Dutch Wikipedia contained 119,978 unique URLs to ...