Joel Montvelisky, Chief Solution Architect at PractiTest, gave a webinar on reporting principles for QA managers. He discussed decision-driven test management (DDTM), where testing is planned based on the information stakeholders need to make decisions. He emphasized the need for repetition and using multiple reporting channels like dashboards and emails. Montvelisky recommended "numberless reporting" using labels rather than numbers, and provided tips for effective reporting including starting with the bottom line, keeping reports simple, and being willing to correct yourself.