"I just noticed that the comma in the border (after "of Christmas") appears to be missing a backstitch line when compared to the cover photo."

"The comma after 'Christmas': it appears that Teresa deliberately changed the backstitching after the model was stitched - originally the bs was straight down the right side of the xs and a line across the diagonal in the square below. On the printed chart it is totally different so I'm sure this is how Teresa would prefer it to be stitched."

"All the letters in each word in the border are separated by 1 thread except for the O and F on the righthand side. Beware the extra thread here, to allow for the crossbar in the F! Having to frog the whole of 'Christmas' is no fun....especially the third time you have to do it....."