Starting the Outlander series can be a bit overwhelming. The series is made up of several large novels (8 currently) and a few novellas. There is also a spin-off series, The Lord John Gray Series, that runs along the same timeline. Some of the characters intersect; so while it is not necessary to read them along with the large novels, it does make for a better reading experience.
If you do want to tackle the Outlander world, take a peek at the Outlander Reading Order that I compiled. And don’t miss out on the Starz adaption of the Outlander books. Fall in love with Jamie and Claire in print and on screen.
Thank you Diana Gabaldon for providing such a rich and epic adventure for your fans.