No. "Written by: Bob Smith" is incorrect. The colon does NOT belong. "Written by Bob Smith" is correct. This is true in every instance - on a title page, on the cover of a book, in a paragraph... There are no cases where a colon belongs after the word "by."
A colon is typically used to introduce a formal quotation in writing.
A colon is primarily used to introduce a list or an explanation. For example, "My grocery list includes: apples, bananas, and milk" or "The museum is known for its collection of ancient artifacts: pottery, jewelry, and sculptures." A colon can also be used to introduce a quote or to separate a title from a subtitle in writing.
no a full stop would be used in place of a colon. Either use a full stop or a colon but never use both
colon used number and other symbol
The currency named Colon is used in Costa Rica.
PUNCTUATION MARK The colon is used to introduce a set of things when listing, or to attach an attribution to a title. ANATOMICAL ORGAN The colon is the large intestine, or just the final section connected to the anus. In the colon, water is removed from digestive waste in preparation for its discharge as fecal matter.
In place of a period
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The term colon is sometimes used to refer to the entire ''large intestine.''
Colon hydrotherapy involves inserting a tube into the rectum and pushing water through the tube. Colon cleansing can be used to describe colon hydrotherapy or the process of taking oral supplements to cause the evacuation of the colon.
The punctuation mark used for titles is called a colon (:). It is commonly used to separate the title from a subtitle or to introduce a list.