is likely referring to the book "Aprender Astronomía con 100 ejercicios prácticos" by Jordi Lopesino, published by Marcombo.
Beginners who want to start observing the sky without getting bogged down in complex theory. Content: Covers 100 different topics, including: Identifying planets and finding the North Star (Polaris). Using binoculars, telescopes, and CCD cameras . Astrophotography techniques for capturing galaxies. Download Aprender Astro con 100 ejercicios zip
Advanced projects like building your own . is likely referring to the book "Aprender Astronomía