What tools are invaluable for those new to product marketing to have familiarity/experience with?

I would seek out frameworks or templates that help you deliver on key product marketing activities. For example, leading product launches is a common task, so find a launch project plan that helps you deliver high-quality output and consistent execution for this important initiative. Given that people have personal preferences and companies have different expectations, no single template or framework is consistently used by everyone. Therefore, I would research the most common options and pick the one that works best for your approach.