I agree Using the thrust of this response that best-marketing reserve is the better expression. @J.R. If a thing is a Ny Occasions Best Vendor, the whole 5 word string would be the adjective in use to switch reserve, Even though why e book is specified is further than me; https://jaspermnibh.answerblogs.com/36782491/an-unbiased-view-of-experienced-advocate-karachi