#4 of 4 in Rama

#2 of 3 in Poseidon's Children

#3 of 3 in Zones of Thought

#7 of 7 in Foundation (Publication Order)

#2 of 2 in Across Realtime

#1 of 5 in The Inheritance Cycle

#3 of 4 in Saga of the Pliocene Exile

#1-2 of 5 in The Norby Chronicles

#1 of 5 in The Belgariad

#2 of 4 in Saga of the Pliocene Exile

#0.1 of 4 in Robot

#3 of 6 in Dragonlance: Preludes

#1 of 3 in The Host

#4 of 4 in Saga of the Pliocene Exile

#1 of 4 in Robot

#12 of 41 in Discworld

#3 of 4 in Revelation Space

#0.5 of 4 in Revelation Space

1 Known Space

#1 of 3 in Capitaine Nemo

#2 of 5 in Ringworld

#1 of 3 in A Time Odyssey

#3 of 3 in Second Foundation Trilogy

#2 of 2 in Commonwealth Saga

#2 of 6 in The Uplift Saga

#1 of 6 in The Twilight Saga

#1 of 6 in Ender's Saga

#1 of 2 in Triffids

7 Foundation (Publication Order)

#2 of 3 in Galactic Milieu Trilogy

#2 of 4 in Manifold

#1 of 3 in Howl's Moving Castle

#1 of 3 in Galactic Milieu Trilogy

#0.5 of 3 in Galactic Milieu Trilogy

#1 of 2 in The Sparrow

#31 of 41 in Discworld

#1 of 3 in Engines of Light

#1 of 7 in Lorien Legacies

#0.1 of 4 in Revelation Space

#3 of 6 in The Uplift Saga

Belgariad Prequels

#1 of 16 in Xeelee Sequence

Middle-earth Legendarium

#3 of 5 in The Dark Is Rising

#1 of 3 in The Way

#3 of 4 in Rama

#3 of 3 in Galactic Milieu Trilogy

#3 of 7 in Foundation (Publication Order)

#11 of 16 in Xeelee Sequence

#1 of 3 in Isaac Asimov's Caliban

#1 of 4 in Song of the Lioness

#3 of 4 in Robot

#1 of 7 in Foundation (Publication Order)

#2 of 3 in Zones of Thought

#2 of 3 in Mars Trilogy

#2 of 4 in Rama

#1 of 4 in Rama

#1 of 2 in American Gods

#3 of 6 in Heechee Saga

#1 of 12 in The Elric Saga

#1 of 3 in Poseidon's Children

#1 of 5 in Dragonlance: Chronicles

#1 of 6 in Earthsea Cycle

#1 of 3 in Zones of Thought

#6 of 9 in Hainish Cycle