While many websites offer free PDF downloads, the original content is copyrighted. However, because the series is out of print and considered "abandonware" by many, it exists in a legal gray area. Here are the best ways to find it:
(trans. Little School of Electronics ) is a classic, beginner-friendly series originally published in the former Yugoslavia (1970s–1980s), often written by Dušan Ilić (though some volumes had other authors). It was designed for hobbyists, students, and anyone curious about electronics — no prior knowledge required.

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While many websites offer free PDF downloads, the original content is copyrighted. However, because the series is out of print and considered "abandonware" by many, it exists in a legal gray area. Here are the best ways to find it:
(trans. Little School of Electronics ) is a classic, beginner-friendly series originally published in the former Yugoslavia (1970s–1980s), often written by Dušan Ilić (though some volumes had other authors). It was designed for hobbyists, students, and anyone curious about electronics — no prior knowledge required.