Should I put a comma after "So"?

[Sarai Burgos]

When I am reviewing the grammar of the books, this error is always marked, but I notice that in some narratives they do not use it. Should I mark it as an error?

[kandscreeley]

It would be helpful to use in a sentence to know for sure. As far as reviewing books, I give some leeway to writers for stylistic choices. If it's not an obvious error, I wouldn't count it. Or, you could always put it in the uncounted errors section. If you mean for your reviews, I'd have to know the context.

[Pauline Parnell]

Its accepted that a comma comes directly after a coordinating conjunction such as so. However, authors do have some amount of stylistic discretion.

[Helen Akoth]

When I am reviewing the grammar of the books, this error is always marked, but I notice that in some narratives they do not use it. Should I mark it as an error?

When 'so' has been used as a coordinating conjunction, then I'd say comma is necessary. However, it is not such a serious error, so when reading a book, you may consider not counting it under the objective errors section. On the other hand, when writing a review, it is advisable to add it to avoid risking being marked down for failing to do so. In cases where 'so' has not been used as a coordinating conjunction, I believe adding a comma is is unnecessary and can even be considered an error.

[Sarai Burgos]

When I am reviewing the grammar of the books, this error is always marked, but I notice that in some narratives they do not use it. Should I mark it as an error?

When 'so' has been used as a coordinating conjunction, then I'd say comma is necessary. However, it is not such a serious error, so when reading a book, you may consider not counting it under the objective errors section. On the other hand, when writing a review, it is advisable to add it to avoid risking being marked down for failing to do so. In cases where 'so' has not been used as a coordinating conjunction, I believe adding a comma is is unnecessary and can even be considered an error.

Thank you so much!!