". of here suggests that the blog is a part of your brand new series. (think of it as being a part of something) for would suggest that you add something (a blog in this case) to something else (a brand new series).
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JigneshbharatiPlease explain the use the preposition "of" in "of our brand new...".
of here suggests that the blog is a part of your brand new series. (think of it as being a part of something)
for would suggest that you add something (a blog in this case) to something else (a brand new series).
in