Neuroscience proves that reading on paper (or annotating a physical book) leads to higher retention than scrolling a PDF. For engineering, where visualization of mechanisms (cams, gears, linkages) is key, a physical book is superior.
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This is a gray area that every student must understand. Neuroscience proves that reading on paper (or annotating
Buy a used physical copy of the 24th or 25th edition for ₹150 on Amazon.in or BookChor. Then, use a free app like or Microsoft Lens to create your own personal PDF. This takes 2 hours but results in a legal "personal repack." where visualization of mechanisms (cams