Crossref Ambassador. Librarian. PhD. Information Science from the Federal University of Rio de Janeiro-UFRJ. Works in the Department of Mathematics Library/State University of Maringá-UEM, Brazil. With 20 years’ experience in scientific metadata and publishing, is expertise is wide-ranging including knowledge of scientific communication, Crossref services, research integrity, misconduct prevention in Science, publishing, biomedical information, OJS, Open Access journals, journals quality and indexing, scientific bibliographical databases. Executive editor to BSPM Math. Journal. He is enthusiastic about presenting and disseminating information about Crossref to Brazil and other countries community.