Energía por dondequiera

Un nuevo caso de la detective Sonia Ruiz. El lado oscuro es la segunda entrega de la colección SeisDoble, escrita por uno de los grandes del género negro español que vuelve a demostrarnos aquí por qué es uno de nuestros narradores más leídos. 'Esta es una de mis mejores novelas', asegura el autor, 'porque la he escrito para mi placer y diversión, y me lo he pasado tan bien escribiéndola que me he olvidado del lector, cosa poco frecuente en mí'.

Simple text and photographs introduce the purpose of money, how old coins and paper money are disposed of, and how new money is made.

Exploración espacial is one book in the Spanish-language Gran Atlas de la Ciencia series that covers today's most popular science topics, from digital TV to microchips to touchscreens and beyond. Perennial subjects in earth science, life science, and physical science are all explored in detail. Amazing graphics--more than 1,000 per title--combined with concise summaries help students understand complex subjects. Correlated to the science curriculum in grades 5-9, each title also contains a glossary with full definitions for vocabulary.

In order for any democracy to function well, understanding how and when to compromise is a necessity. This book introduces students to how compromise makes governing possible. Using examples of how compromise works in their own lives, students will gain a better understanding of how compromise work on a larger level. Conversely, readers will also learn that compromise may be the wrong course of action in some situations and that some issues are of such critical importance or high moral worth that standing firm is appropriate.