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Hola If you've always wanted to learn Spanish, here's a quick and easy way to get started. Whether you're planning a vacation in Mexico or adding a valuable second language to your resume, The Everything Essential Spanish Book will help you order the right dish in a restaurant, answer customer's questions, or converse with locals when traveling.

With easy-to-follow instructions and simple explanations, this portable guide covers the most important Spanish basics, including:

• The Spanish alphabet and...

This new look at Barbara Bush draws on recently opened records at the Bush library, the first lady's many speeches, interviews with the first lady's staff, and an exclusive interview with Mrs. Bush to impart a new appreciation for this beloved former first lady. And while other biographies--and her own memoir--have...

Radical political and social changes, together with the development of radio and television, have dramatically altered the role of the President's wife since the early years of this century. Gutin's book examines the public and private personas of twelve presidential wives in the context of those changes. Focusing on the First Lady's public communications, the author looks at the roles that each of these women has filled, from ceremonial figure and White House hostess to presidential surrogate, campaigner, and independent advocate for special causes.

Although several presidential wives...

The theory of directed graphs has developed enormously over recent decades, yet this book (first published in 2000) remains the only book to cover more than a small fraction of the results. New research in the field has made a second edition a necessity.

Substantially revised, reorganised and updated, the book now comprises eighteen chapters, carefully arranged in a straightforward and logical manner, with many new results and open problems.

As well as covering the theoretical aspects of the subject, with detailed proofs of many important results, the authors present a number...

A brilliant treatment of a knotty problem in computing. This volume contains chapters written by reputable researchers and provides the state of the art in theory and algorithms for the traveling salesman problem (TSP). The book covers all important areas of study on TSP, including polyhedral theory for symmetric and asymmetric TSP, branch and bound, and branch and cut algorithms, probabilistic aspects of TSP, and includes a thorough computational analysis of heuristic and metaheuristic algorithms.

A brilliant treatment of a knotty problem in computing. This volume contains chapters written by reputable researchers and provides the state of the art in theory and algorithms for the traveling salesman problem (TSP). The book covers all important areas of study on TSP, including polyhedral theory for symmetric and asymmetric TSP, branch and bound, and branch and cut algorithms, probabilistic aspects of TSP, and includes a thorough computational analysis of heuristic and metaheuristic algorithms.