Books like De Rerum Natura
Titus Lucretius Carus
De Rerum Natura is 285 pages, about 5 hours 14 minutes at 250 words a minute.
12 books to read next
How long each takes
Ars Amatoria 3.7 h 
The Art of Poetry 1.7 h 
Metamorphoses 7.1 h 
Fasti 5.9 h 
The Georgics of Virgil Translated by Thomas Neville, .. 2.3 h Seneca 6.9 h 
Metamorphoses 4.8 h 
The Epigrams of Martial 7.4 h 
Meditations 3.7 h 
The Works of Virgil 9.1 h 
Essays 5.2 h 
Theogony 2.4 h Bar height shows length. Estimated at 250 words a minute.