Having just read through both recently, "Transformer" is more about the Krebs Cycle than the origin of life itself (although it of course addresses those latter

Having just read through both recently, "Transformer" is more about the Krebs Cycle than the origin of life itself (although it of course addresses those latter points). "Transformer" is also much denser... more of an organic chemistry textbook in most places. The most "approachable" organic chem textbook I've ever read... but still an organic chem textbook. Would highly recommend both but don't expect Transformer to be the Vital Question.