¿Que es un Libro?

Un libro (del latín liber, libri) es una obra impresa, manuscrita o pintada en una serie de hojas de papel, pergamino, vitela u otro material, unidas por un lado (es decir, encuadernadas) y protegidas con tapas, también llamadas cubiertas. Un libro puede tratar sobre cualquier tema.

Según la definición de la Unesco, un libro debe poseer 25 hojas mínimo (49 páginas), pues de 24 hojas sería un folleto y de una hasta cuatro páginas se consideran hojas sueltas (en una o dos hojas).

También se llama "libro" a una obra de gran extensión publicada en varias unidades independientes, llamados "tomos" o "volúmenes". Otras veces se llama también "libro" a cada una de las partes de una obra, aunque físicamente se publiquen todas en un mismo volumen (ejemplo: Libros de la Biblia).

Hoy en día, no obstante, esta definición no queda circunscrita al mundo impreso o de los soportes físicos, dada la aparición y auge de los nuevos formatos documentales y especialmente de la World Wide Web. El libro digital o libro electrónico, conocido como e-book, está viendo incrementado su uso en el mundo del libro y en la práctica profesional bibliotecaria y documental. Además, el libro también puede encontrarse en formato audio, en cuyo caso se denomina audiolibro.

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