Is the word livros the same in Brazilian and European Portuguese?

Yes

The spelling, meaning, and grammatical function of "livros" are identical in both Brazilian and Continental Portuguese. The only difference lies in pronunciation:

• Brazilian Portuguese: The vowels are generally more open and clearly articulated. The final "s" is typically pronounced as a soft "s" (like the "s" in "sun").
• Continental Portuguese: The pronunciation is more "closed." Unstressed vowels are often reduced or shortened significantly. Crucially, the final "s" is pronounced as a "sh" sound (like the "sh" in "shoe").

Brazilian Portuguese Examples

1. Eu amo ler livros de ficção. (I love reading fiction books.)
2. Eu preciso comprar alguns livros novos. (I need to buy some new books.)
3. Os livros estão na estante. (The books are on the shelf.)
4. Você já leu esses livros? (Have you read these books?)
5. Eu ganhei muitos livros de presente. (I received many books as a gift.)

Continental Portuguese Examples

1. Eu adoro ler livros de ficção. (I love reading fiction books.)
2. Tenho de comprar uns livros novos. (I have to buy some new books.)
3. Os livros estão na prateleira. (The books are on the shelf.)
4. Já leste estes livros? (Have you read these books?)
5. Recebi muitos livros de oferta. (I received many books as a gift.)