From season three, Claire is wearing this gorgeous sweater in the library with Bree and Roger.
The pattern has tutorials, charts, pictures, and written instructions.
It’s a good idea to download the washcloth pattern and work on that first, to learn the pattern. Once you get it, you won’t have to look at a chart or read directions. You’ll be able to do it in your head.

Materials:
-Fingering weight yarn. I used Knit Picks Alpaca Cloud Fingering, “Rebecca”, 1200 yds (total), 6 skeins of 200 yds each for XS-S. Add 1 skein for M-L, 2 for XL-1XL, 3 for 2-3XL and 4 for 4-5XL. For example, for a 5XL sweater, it’ll take 2000 yards.
-Hook: E (3.5 mm)
-Highlighter to highlight your measurements on the paper
-Yard stick or measuring tape
-14 stitch markers, crochet ones that open and close (You can get 50+ for $1 on Amazon US)
-7 buttons, dark red, round, preferably pearlized/shiny to be accurate
-Blocking mats and pins

Abbreviations:

Ch = chain
SC = single crochet
Pat = pattern
Rem = remaining
Rep = repeat
DC = double crochet
DC2tog = double crochet 2 together
Sl st = slip stitch
Sp(s) = space(s)
St(s) = stitch(es)

Sizes:
To fit bust/chest measurement
Extra-Small/Small – 28-34” 71-86.5cm
Medium – 36-38” 91.5-96.5cm
Large – 40-42” 101.5-106.5cm
Extra Large – 44-46” 112-117cm
2/3 XL – 48-54” 122-137cm
4/5 XL – 56-62” 142-157.5cm

Finished bust/chest
XS/S – 37” 94cm
M – 40.5” 103cm
L – 44.5” 113cm
XL – 49” 124.5
2/3 XL – 55” 140cm
4/5 XL – 63” 160cm

Do not worry about RS/WS. It’ll look the same on both sides.