TheALSO POSSIBLE: The distinct smell of books brings me a sense of contentment to me. ALSO POSSIBLE: The distinct smell of books brings contentment to me.

(The original is also possible.)

The smell of books bringalways gives me a sense of contentment. The smell of books always gives me a sense of contentment.

"The smell of books makes me feel a sense of contentment." "The smell of books makes me feel content."

The smell of books brings me a sense ofmakes me feel contentment. The smell of books makes me feel content.

Edited to be more concise

If it were aALSO POSSIBLE: Had it been in Mandarin book, it would behave been much heavier. ALSO POSSIBLE: Had it been in Mandarin, it would have been much heavier.

Do you know the smell of/scent of most English books is differents from (that of) most Mandarin books? Do you know the smell/scent of most English books differs from (that of) most Mandarin books?

ALSO POSSIBLE: Many English have a different scent than Mandarin books? [NOTE: This version feels smoother to me.]

Doid you know the smell of English books is different from that of Mandarin books? Did you know the smell of English books is different from that of Mandarin books?

Doid you know the smell of English books is different from that of Mandarin books? Did you know the smell of English books is different from that of Mandarin books?

Doid you know the smell of English books is different from that of Mandarin books? Did you know the smell of English books is different from that of Mandarin books?

Doid you know that the smell of English books is different from that of Mandarin books? Did you know that the smell of English books is different from that of Mandarin books?

Usually with facts that are phrased as questions like this, you would say "Did you know that..."

Recently I bought the English book, The Song of Achilles by Madeline Miller, and I was surprised by how light it is/was compared to its thickness. Recently I bought the English book, The Song of Achilles by Madeline Miller, and I was surprised by how light it is/was compared to its thickness.

NOTE: Personally, I think"....how light it was" is a better choice than "....how light it is" since the rest of this sentence is in the PAST TENSE.

Recently I bought the English book, original English version of "The Song of Achilles" by Madeline Miller, and I was surprised by how light it is compared towas given its thickness. Recently I bought the original English version of "The Song of Achilles" by Madeline Miller, and I was surprised by how light it was given its thickness.

Recently I bought thean English book, "The Song of Achilles" by Madeline Miller, and I was surprised by how light it is compared todespite its thickness. Recently I bought an English book, "The Song of Achilles" by Madeline Miller, and I was surprised by how light it is despite its thickness.

Recently I bought the English book, "The Song of Achilles" by Madeline Miller, and I was surprised by how light it is compared to its thickness. Recently I bought the English book, "The Song of Achilles" by Madeline Miller, and I was surprised by how light it is compared to its thickness.

It's better to clearly show that a book title is, in fact, a title of a book. That can be done with quotation marks like this.

I believe itALSO POSSIBLE: Perhaps this is because they are printed on different types of paper; English paperbacks are usually printed on light yellow paper, while Mandarin books are printed on purebleached white paper. ALSO POSSIBLE: Perhaps this is because they are printed on different types of paper; English paperbacks are usually printed on light yellow paper, while Mandarin books are printed on bleached white paper.

I wonder why books are printed differently in different countries. I wonder why books are printed differently in different countries.