Yes, in writing, you should capitalize the names of books.
Yes, "Ancient American Indian Villages" should be capitalized. "Ancient" and "American" are adjectives that describe the type of village. "Indian" in this context refers to the Indigenous peoples of America.
Yes, you should capitalize abbreviations when writing them in a formal document.
When you are writing formally you should, but you dont have to.
Yes it should be capitalized.
Yes, events should be capitalized when writing formal invitations.
You should capitalize island when it is a part of a proper name. For example: Long Island, Gillian's Island.
When writing essays they shouldn't actually be capitalized. They should just be incorporated into your writing.
Capitalize titles in writing and grammar when they come before a person's name, as in "President Lincoln." However, do not capitalize titles when they are used generically, like "the president announced a new policy."
If you are writing something with a title, you would capitalize Happy Holiday Season in the title. If you are writing it in something other than a title, you would not capitalize it.
Yes, you should capitalize the first letter of each word in "Thank You" when writing a thank you card as it is a proper noun.
Yes. It is a name of a magazine then it should be capitalized.