The Miles Vorkosigan Saga Series

"Falling Free" (set 200 years before Vorkosigan Adventures)

The story of the romance between Miles' parents:
"Shards of Honor"
"Barrayar"

The Miles Vorkosigan adventures:

"The Warrior's Apprentice"
"The Vor game"
"Borders of Infinity"
"Cetaganda"
"Brothers in Arms"
"Mirror Dance"
"Memory"
"Komarr"
"A Civil Campaign: A Comedy of Biology and Manners”
"Diplomatic Immunity"

And a separate adventure for Miles' friend Elli Quinn:
"Ethan of Athos"