The Master Mental Model for PM Interviews states that interview preparation isn't different from the actual job and doing one can make you better at the other, provided you understand the link between both and there is a clear 'why' behind the interview questions of every company.
A PM job has three different stages of a product, Pre-PMF, growth, and maturity, and each product stage requires different skills such as market-sizing, user research, problem-solving, design, tech, data, and go-to-market strategy.
PM interview questions can be categorized into eight categories such as opportunity sizing and guesstimates, market entry, product sense, technical, go-to-market strategy, growth, behavioral, and leadership.
Improving your real skills in the different stages of a product can be a true differentiator in the interviews, and understanding the 'Why' behind the interview questions becomes much easier if you can understand the role and the company's stage and culture.
Each PM interview guide will cover the relevance of the question type, companies that love the question the most, the most popular question around it, approach or framework to solve it, end-to-end example of each sub-type, key mistakes, and examples of such mistakes, subjective questions database for further practice, books around the topic and articles, videos around it and their ratings as well.