It depends what point you're starting from. How old are you? What's your academic/professional background? Can you read a balance sheet? Do you know how to do a DCF? Can you value a company? Have you worked in a start up?
Start with the course Bocconi offers through Coursera. It's free to audit and you'll learn terms that you hear a lot in the VC/PE space. Then there's David Rose books - Startup Checklist, Angel Investing. Others include Venture Deals, Term Sheets and Valuations, Venture Capital Valuation: Case Studies and Methodology, The Art of the Start 2.0, The Lean Startup. You'll notice I gave you books on how to create a start up. These are actually essential reading too because a lot of the most successful companies follow these principles. Also, prominent VC firms release a ton of literature on the space. Read all of it. I linked Sequoia's, but also look at Openview, Andreessen Horowitz, etc. As a VC, you need to guide/source companies, so you need to be familiar with the best practices to help them with strategic decisions and evaluate if they're worth presenting to Partners.
There's no 'vc' certification, but if you don't know how to value a company in Excel you're probably not going to get hired. Use the Wallstreetprep course or do a certificate in financial modeling for IB/PE/VC. Less helpful certs include Google Adwords/Analytics, digital marketing (check out Whartons) and entrepreneurship. If you have no business background you're going to need to learn about business in general. Get a general business diploma that covers accounting, finance, operations, marketing, sales, etc.
I want to stress that getting a certificate will not be an entrance to VC. It will help increase your chances. Probably by only about 2%. Networking is the definitive factor that will get you a job if you come from a non-traditional background.