Assuming you want a better-quality PDF (40 pages? 40 MB?) or an improved summary/feature list for "Cosmología Física" by Jordi Cepa, I’ll provide both: a brief actionable plan to obtain a high-quality PDF legally and a concise, improved 40-point feature/summary list (40 concise items) about the book's content and strengths.
Which cosmological era are you focusing on (Primordial vs. Contemporary)? cosmologia fisica jordi cepa pdf 40 better
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Relatividad Aplicada: Cubre la métrica, la relatividad general y las ecuaciones de Friedmann, fundamentales para entender la dinámica del cosmos. Contemporary)
: Establishes the foundations of what we can see and how we measure it. Relativity Applied to the Universe
Digital/E-book: Available on Google Books for preview and purchase.