Investing in your knowledge has two benefits. The first one you can get from Warren Buffett advice. Results here:

AWS Salary Survey

But the other is much greater. Personal growth as a result of getting better each day at the thing you love to do. It is self-gratifying, and your work does not seem like work at all.

JavaScript - From Obscure Language to Mainstream Language for Serverless

JavaScript was for decade considered a failed language. But now it is a mainstream multipurpose language that also fits perfectly with serverless solutions.

Serverless Vendor Lock-In

Serverless Vendor Lock-In is not what it seems. You are locked in to APIs, not functions. But in most cases, you are freer than you used to be.

AWS Serverless Common Mistakes - Communication with Other Systems (5/7)

"No service is an island" and serverless systems can have problems communicating with other systems. This is part of a multipart blog post about serverless common mistakes.