Some volumes go in and out of print, making digital copies a reliable alternative. Legal and Ethical Reading
Carrying 12 thick hardbacks is impossible; having them on a tablet is ideal for reference. the history of middle earth volumes 1-12 pdf
Detailed drafts of the Battle of the Pelennor Fields. Some volumes go in and out of print,
The earliest versions of the cosmogony and the gods (Valar). the history of middle earth volumes 1-12 pdf
Early drafts of The Fellowship of the Ring , where "Strider" was a hobbit named Trotter.