While Volume I typically covers the Primeval History and the Patriarchs (Genesis/Exodus), Volume II focuses on the formation of the covenant and the law.
The series you mention is likely by Jaime Calvo or a similar Spanish author on power electronics. To legally access it: While Volume I typically covers the Primeval History
Some technical publishers have multi-volume sets, but not with "5 libros de la biblia." While Volume I typically covers the Primeval History