SAN MATEO, Calif. - TelAve -- Attention every business in the Universe: For Read an Ebook Day (September 18, 2026) and for every day of the year for large and small businesses, take about an hour to read a book about some very effective, very essential and very easy-to-use advertising and marketing math called "The Barrows Popularity Factor."

The math will give you more of the information you need to make key marketing decisions with far less risk, and businesses of all kinds can use the math to help them increase their sales, increase their profit and decrease their risk.

The math was developed by Robert Barrows, President of an advertising agency called R.M. Barrows Advertising & Public Relations in San Mateo, California.

He calls the math "The Barrows Popularity Factor" because it lets you measure "the popularity of a product and its promotion." "They are intertwined, says Barrows, but now they can be quantified with the math in 'The Barrows Popularity Factor.'"

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"The math not only lets you take a lot of the guesswork out of your advertising, the math actually lets you quantify the relationship between your advertising and sales," says Barrows.

And, when businesses are trying to figure out the best ways to increase their sales and profit, one of the best ways to start is with the math in "The Barrows Popularity Factor."

"You can read the whole book in about an hour and the math is so easy to use that all of the calculations can be done by one person, in moments, with just a simple calculator.

So, before you try to decide how to spend another dime of your advertising budget, take about an hour to read "The Barrows Popularity Factor."

It will show you some very easy-to-use advertising math that can help all kinds of businesses analyze, test and plan their advertising much more effectively and much more efficiently, and it can help all kinds of businesses make a lot more money."

You can read all about the math and how to use it in a book called "The Barrows Popularity Factor" that you can download for $4.95 on a book publishing website called Authorhouse.

For more information about "The Barrows Popularity Factor," contact Robert Barrows at R.M. Barrows, Inc. Advertising & Public Relations in San Mateo, California at 1-650-344-4405, www.barrows.com