E. E. "Doc" Smith books in order

9 books in the catalogue, about 52 hours of reading in all; the shortest takes 4 hours and the longest 15 hours.

2 series and 7 standalone books in the catalogue.

Lensman series

7 books

Triplanetary 1934 length not known

Children of the Lens 1947 length not known

2 First Lensman 1950 length not known

3 Galactic Patrol 1937 4.7 h

4 Gray Lensman 1939 length not known

5 Second Stage Lensmen 1953 length not known

The History of Civilization 1961 length not known

Skylark

4 books

The Skylark of Space 1928 length not known

Skylark Three 1948 length not known

Skylark of Valeron 1949 length not known

Skylark DuQuesne 1966 4.4 h

Standalone books

Gray Lensman 1939 5.1 h The Skylark of Space 1946 4.1 h Triplanetary 1948 4.1 h First Lensman 1950 5.6 h Second Stage Lensmen 1953 4.8 h Children Of The Lens 1954 4.7 h Atkinson & Hilgard's Introduction to Psychology 2002 14.7 h