In English Translation:

Kolyma Tales translated by John Glad

Graphite translated by John Glad

*These are the only works I was able to find in English translation, there may be others. I was unable to find any translations of Shalamov's poetry.

In Russian:

Kolyma Tales (Kolimskiye Raskazi)

An autobiography (Chetvyortaya Vologda)

Five collections of poetry (Izbranniye Stikhi)