Is this LEGO set actually a physical building set?

No, this item is listed as a Non-fiction Book and contains 0 pieces.

What year was LEGO The LEGO Book released?

This specific set, 5002887-1, was released in 2009.

Since it is a book, the piece count of 0 is expected and relates to its non-construction nature.

Name: LEGO The LEGO Book (5002887-1)
Brand: LEGO

Non-fiction Books

Non-fiction Books · 2009

Theme · Non-fiction BooksPieces · 0Set Number · 5002887-1Year · 2009

Used

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New / Sealed

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Is this LEGO set actually a physical building set?: No, this item is listed as a Non-fiction Book and contains 0 pieces.
What year was LEGO The LEGO Book released?: This specific set, 5002887-1, was released in 2009.
Does the piece count (0) affect its resale value?: Since it is a book, the piece count of 0 is expected and relates to its non-construction nature.