Cezary Pietrzak is hosting office hours on growth and marketing fundamentals for startups on Mondays from 4-7 PM over 9 weeks. He has experience in startup marketing, consumer insights, brand strategy, and marketing consulting. He believes successful marketing combines qualitative research and positioning with quantitative analytics and testing. During the sessions, he will cover frameworks and his expertise in areas like marketing funnels, user acquisition, content marketing, and referral programs.