Concretamente, quiero este libro.

Concretamente means something like specifically, more precisely, or to be exact.

In Concretamente, quiero este libro, it helps narrow things down. It suggests the speaker is being precise after a more general discussion, for example:

• Quiero un libro. Concretamente, quiero este libro.
  • I want a book. Specifically, I want this book.

In Spain, concretamente is perfectly natural, though in everyday speech you might also hear:

• En concreto
• Específicamente (a bit more formal or technical depending on context)

So here it gives the idea of to be specific.

Spanish word order is fairly flexible, but this sentence uses a very natural order:

• Concretamente = discourse adverb at the beginning
• quiero = verb
• este libro = direct object

So the structure is:

• Concretamente,
  • quiero
    • este libro

Putting concretamente first is common because it sets the tone for the whole sentence: to be specific...

Other orders are possible, but they may sound more marked or less neutral:

• Quiero concretamente este libro
  This can sound like you are stressing that it is this book in particular.
• Este libro quiero
  Grammatically possible in some contexts, but not the most neutral everyday order.

So the given version is a normal, neutral way to say it.

Spanish often leaves out subject pronouns because the verb ending already tells you who the subject is.

• quiero = I want

The -o ending shows it is yo.

So:

• Quiero este libro = I want this book
• Yo quiero este libro = I want this book

Both are correct, but yo is usually omitted unless you want emphasis, contrast, or clarity.

For example:

• Yo quiero este libro, pero ella quiere ese.
  • I want this book, but she wants that one.

In your sentence, yo is unnecessary.

Quiero is the 1st person singular present indicative form of the verb querer.

So:

• querer = to want, to love
• quiero = I want

This verb is irregular in the present tense:

• yo quiero
• tú quieres
• él / ella / usted quiere
• nosotros queremos
• vosotros queréis
• ellos / ellas / ustedes quieren

Notice the stem change:

• quer- → quier-

except in nosotros and vosotros.

In this sentence, quiero simply means I want.

You can say either one, depending on context.

• este libro = this book
• este = this one

If the noun is already clear from context, Spanish can drop it:

• Quiero este.
  • I want this one.

But if you want to name the object clearly, you keep the noun:

• Quiero este libro.
  • I want this book.

So este libro is more explicit, while este is shorter and used when the listener already knows you are talking about books.

Spanish has a three-way demonstrative system that is often taught like this:

• este = this (near the speaker)
• ese = that (near the listener or not as near the speaker)
• aquel = that over there (far from both)

So:

• este libro = this book
• ese libro = that book
• aquel libro = that book over there

In modern real-life usage, especially depending on region and situation, the distance distinction is not always used in a perfectly strict way, but this basic idea is still very useful.

In your sentence, este libro suggests the book is close to the speaker, or the speaker is mentally identifying it as this one here.

Because este is already a demonstrative determiner. It works like this in English.

Compare:

• el libro = the book
• este libro = this book

You do not normally say:

• el este libro ❌

That would be incorrect in standard Spanish.

So este directly determines the noun, just like English this does.

It is not extremely formal, but it does sound a bit more careful or precise than the most casual options.

It is common in:

• explanations
• presentations
• writing
• situations where you are clarifying something

In everyday conversation, many speakers might also say:

• En concreto, quiero este libro.
• Más concretamente, quiero este libro.
• Es decir, quiero este libro.
  (not exactly the same, but sometimes used to clarify)

So concretamente is natural and correct, but it has a slightly precise, explanatory tone.

Yes. En concreto is a very common alternative and often sounds very natural.

Compare:

• Concretamente, quiero este libro.
• En concreto, quiero este libro.

Both mean roughly Specifically, I want this book.

The difference is mostly stylistic:

• concretamente = one-word adverb, a bit more polished
• en concreto = common phrase, often very natural in speech

Neither is wrong here.

Because here concretamente is being used as a sentence adverb or discourse marker. It comments on the whole statement rather than modifying just one word.

So the comma helps show:

• Concretamente, = to be specific,
• quiero este libro = the main statement

This punctuation is very common in Spanish when words like these appear at the beginning of a sentence:

• Sinceramente, no lo sé.
• En realidad, no importa.
• Concretamente, quiero este libro.

Without the comma, readers may still understand it, but the comma is the standard and clearer choice in this use.

A rough Spain Spanish pronunciation is:

• con-cre-ta-MEN-te

The stress falls on men because the word ends in a vowel and has no written accent mark.

A rough English-style guide:

• kon-kreh-tah-MEN-teh

A few useful pronunciation notes for Spain Spanish:

• c before o is a hard k sound: con
• r in concretamente is a tapped Spanish r
• final e is pronounced, not silent

So it should sound like a clear five-syllable word: con-cre-ta-men-te

In modern standard Spanish, demonstratives like este, ese, aquel normally do not carry written accents.

So you write:

• este libro
• ese libro
• aquel libro

You may have seen older spellings like éste, especially when used as a pronoun, but current standard usage recommended by the RAE is generally:

• este = this / this one
• ese = that / that one

without an accent in normal writing.

So quiero este libro is the standard spelling.

Not necessarily. Querer is the normal verb for to want, and in many contexts it is completely natural.

• Quiero este libro. = I want this book.

Whether it sounds direct, neutral, or demanding depends on tone and situation.

If you are in a shop and want to sound more polite, Spanish often uses softer forms such as:

• Quería este libro.
  Literally I wanted this book, but often used politely like I’d like this book.
• Me gustaría este libro.
  I would like this book.

But if you are simply identifying the book you want, quiero este libro is perfectly normal.

No, not in this sentence.

Although querer can mean to love in some contexts, especially with people:

• Quiero a mi familia.
  • I love my family.

in Quiero este libro, the meaning is clearly I want this book.

Why?

1. The object is a thing, not a person.
2. There is no a before este libro.
3. In this context, it sounds like choosing or requesting the book.

So here querer means to want, not to love.

Because the personal a is mainly used before specific people and sometimes pets or personified beings.

Examples:

• Quiero a María. = I love María / I care for María
• Veo a mi hermano. = I see my brother

But with things, you usually do not use the personal a:

• Quiero este libro. ✅
• Quiero a este libro. ❌

So este libro is a direct object referring to a thing, and no a is needed.

Yes. Both are good translations, depending on tone.

Possible natural translations include:

• Specifically, I want this book.
• More specifically, I want this book.
• To be precise, I want this book.
• What I want, specifically, is this book.

The best option depends on context. Concretamente often has the feel of specifically or to be precise rather than a literal one-to-one English equivalent in every situation.