Make: Volume 57 features a familiar face on its cover... it's LadyAda with one of her Circuit Playgrounds, of course!

This is Make Magazine's annual boards blowout issue, an examination of the latest from the world of microcontrollers and single-board computers! These prototyping devices are more powerful than ever, with the latest crop now capable of machine-learning tasks such as instantly identifying objects and driving autonomous vehicles. Meanwhile, new board ecosystems have started popping up, giving makers some great alternatives to the venerable classics. Make's boards guide insert will help readers figure out what is right for their project.

The issue also includes profiles of notable people and companies in this space, with a large feature on our very own Limor "LadyAda" Fried, "the pioneering open-source engineer/CEO" of Adafruit. And, as always, a range of projects to keep you busy in your workshops and makerspaces.

All magazines ordered from Adafruit are signed by LadyAda herself! That's right – she individually signed every magazine that we have here. Get yours before they're all gone!