Reddit mentions of How the Immune System Works (The How it Works Series)

I strongly agree with the commenters above that becoming an "expert" with little formal training is very optimistic. However, I think there is value in being a "local expert", a kind of local maximum of expertise within your organization.

Do you at least have a science background? That certainly helps. For the immunology piece, I recommend How the Immune System Works, a lovely short and approachable introductory text by Lauren Somparyac. I also agree that Weinberg is a good place to start for a brief intro to cancer biology.

For a perspective on the cancer immunotherapy field I recommend Steven Rosenberg's The Transformed Cell, which is a first person account of his pioneering research in the field. He's also written a nice summary of cancer biology with two other authors called a Primer of the Molecular Biology of Cancer.