This is an excellent and thorough book about the origin of life. It begins with some historical material on the subject. Then there's a some characteristics of the consitituents of cells. Lahav points out that one property of life is that all its fundamental constituents are non-living.
After that, there is a brief but important discussion of general thermodynamic considerations, including free energy, entropy, information content of DNA, and autocatalysis. From there, we go to a chapter on biochemical molecules and processes. And we see Martynas Ycas' definition of a biochemical system ("a system of catalysts regulating the transformation of other compounds so as to make available the system energy and matter for its further increase and maintenance"). In addition, there's a chapter on biological life, with four pages just to compile various definitions of life.
Now we're ready to take on the main problem. The basic assumptions are that the physical laws are applicable and that evolution takes place at the molecular level. The strategies include cosmogeochemical (characterizing the environments in which the first living entities formed), biological (looking for the oldest actual life forms), and biogeochemical (looking at the synthesis of biopolymers).
Lahav supplies some clues from biology about the origin of life, including chirality, multiplicity of steps to generate life, temperature at which life originated, common origin for RNA, the citric acid cycle, and "evolutionary clocks." Then we get into some specific lines of attack. The first is that ribose has a stability problem and adenine hydrolyzes. That gets us to look at a PNA (peptide nucleic acid) world and template-directed reactions. And we see Hartman's theory that the original code began with glycine, alanine, arginine, and proline. And we look at the issue of the "error threshold" of a copying process.
We then are introduced to another question: did the origin of life entail the use of minerals as scaffolds, adsorbents, catalysts, or information carriers? That includes a discussion of Wachtershauser's "iron-sulfur world." And there is a look at where on Earth life could have started: volcanoes, hot springs, bulk ocean water, bubbles, atmospheric water drops, lagoons, ocean floor, ocean surface, or hydrothermal vents.
The final chapter is about computer modeling of some biogeochemical scenarios. The book ends with a fine list of references.
I strongly recommend this book to those genuinely interested in the fascinating question of the origin of life on Earth.