The ICM – Interdisciplinary Centre for Mathematical and Computational Modelling - of the University of Warsaw (UW) published a Guide to open science - “Przewodnik po otwartej nauce”. The Guide covers Open Access, Open Science and Open Educational Resources. Authors of the Guide are Justyna Hofmokl, Krzysztof Siewicz and Alek Tarkowski, Creative Commons Polska coordinators, Bożena Bednarek-Michalska from the Nicolaus Copernicus University Library in Torun and Jakub Szprot from ICM UW. Edwin Bendyk wrote an introduction to the Gudie.