A physical Lucent book weighs roughly 1.2 kg. If you commute 2 hours daily to coaching classes, that weight strains your back. A PDF lives on your phone (150g).
Lucent’s is often compared to the "Arihant" or "Kiran" standards, but it holds a specific niche for being concise and fact-oriented. While they are famous for their General Knowledge (GK) book—which is considered the bible for static GK—their mathematics offering is often viewed as a complementary powerhouse. complete mathematics by lucent 39s publication pdf portable