This new, revised impression of the original 2007 edition of
Omar Khayyām: poet – rebel – astronomer
is now on sale in the UK
from
https://www.amazon.co.uk/Hazhir-
Teimourian/e/B00J9ODFLY/ref=sr_tc_2_0?qid=1423652706&sr=1-2-
ent%20
in both print and e-book formats.
In the United States and elsewhere, please go to your local Amazon site
and search for Omar Khayyam: Poet, Rebel, Astronomer.