If you're diving into the world of metal additive manufacturing (AM), this book by Paul Gradl and his team is an absolute game-changer. I got the PDF version, and let me tell you—it's packed with gold. The content isn’t just limited to propulsion; it’s a treasure trove for anyone in AM, whether you're a student, engineer, or industry professional.

What blew me away? The sheer depth of knowledge. This isn’t just a surface-level overview—it’s years of research, organized into a clear, structured format. The focus on Laser Powder Bed Fusion (L-PBF) and Directed Energy Deposition (DED) keeps things practical, helping you decide which tech fits your needs.

The book covers everything: feedstock, post-processing, heat treatment, even certification from a NASA/aerospace lens. It’s like having a mentor walk you through the entire AM lifecycle. And the appendices? Pure value—way more than what you’d expect for the price.

One gripe: if you go for the hardcover (which is great), you’ll miss out on keyword searches. The PDF is clutch for navigating this dense material. Trust me, this book is worth every penny—it’s the AM bible we didn’t know we needed.