Absolutely, if you like time travelling. I've read them all from Cross Stitch (also published as Outlander), Dragonfly in Amber, Voyager, Drums of Autumn, The Fiery Cross and
will soon start on A Breath of Snow and Ashes. In that order, each book is a unit, but better as a continuing story.
They're hefty volumes but the story about a nurse who lands in the middle of the Jacobite Rebellion after going through a circle of stones in the Scottish Highlands is written with humour and is interwoven with historical fact.
Try Cross Stitch first and see how you like it.
Hope this helps
tara