1) What is PM? What are some traits of competent PMs?

Here are some excellent resources that will teach about product management as well as the responsibilities that product managers are expected to handle

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Product Diploma
Great book that introduces current college undergrads and grad students to product management and how to ease into this field...
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UC Berkeley I School PM Checklist
PDF that lists essential skills that are relevant in the field of product management...
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Chloe Shih PM YouTube video
Video showcasing a Product Manager and her responsibilities and how she goes about doing the job...
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Cracking the PM Interview
Great book that has several relevant chapters explaining product management (and how the field differs from company to company) and also how to get the right experience to become a PM...
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