Preface to the SIGIR 2025 Workshop on eCommerce Workshop on eCommerce (ECOM 0 a full day workshop that took place on Thursday 0 in Padua 0 discussion of Information Retrieval 0 NLP research 0 Amazon 0 Airbnb 0 Alibaba 0 Taobao 0 Target 0 The Home De- pot 0 others). The SIGIR 0 Workshop on eCommerce (ECOM 0 ) brought together researchers 0 in total the workshop received 0 submissions 0 accepted 0 the workshop had 0 0 Aditya Chichani (Walmart) Pallavi Gudipati (Upwork) Yubin Kim (Vody Inc.) Tracy Holloway King (Adobe Inc.) Andrew Trotman, University of Otago 2025