Personally, as a developer-turned-PM-turned-Product Lead, I can ascertain that a lot of the advice on this thread is largely sound. I will also add that when you first start out as a PM, you will make a lot of mistakes, especially if you come from an engineering background (like me).
By the way, I'll be teaching a 10-week course on product management with Stanford Continuing Studies starting next month (April 2018).
It's fully online and much less expensive than a certification program. The goal is to teach you the ins and outs of product management and really prepare people for the role. Not kidding, I've spent hundreds of hours and a lifetime of learning into creating this course....it's the best course on product management out there, and the one I wish I had available to me when I graduated 15 years ago.
Here's a preliminary Syllabus:
Classes start the week of April 2nd, registration opens March 5th, and the class is limited to 45 students. Even if I wasn't posting this, I am told there's a high likelihood it'll fill.
I started my career as an engineer, but from the beginning, I was always curious about the 'why' and driven to build products that solve real-world problems.
I started a company, but it failed, primarily because we never reached product-market fit. That was a hard lesson to learn. I then decided that I wanted to pursue a career in product management, but with no prior experience in the field, found it surprisingly hard to break into this elusive role. After more than 100 interviews over the course of 2 years and almost at the brink of giving up, I was able to break into the field. That was my big break and I haven't looked back since.
I have held executive level positions in Product management, led the conception, execution, go-to-market and growth of products like Treat by Shutterfly (previously called Tiny Prints Greetings), Bills.com, Debt Navigator, Freedom Debt Relief, and FreedomPlus. I am a contributor to Mind The Product, have spoken at conferences like Product Camp Silicon Valley and am an advisor to a few companies.