马克•欧文（Mark Owen） 曾服役于美国海军特战发展大队（通称“海豹六队”）。多年来曾参与过几百次全球范围的行动，其中包括2009年在印度洋营救理查德•菲利普斯船长的行动。2011年5月1日，在巴基斯坦阿伯塔巴德，欧文任“海王星之矛”行动负责人。这次行动击毙了奥萨马•本•拉登。欧文与其他几个队员首先踏入这个恐怖分子头目的藏身之处的第三层。在那里，欧文目睹本•拉登被击毙。出于安全的考虑，《艰难一日》中“马克•欧文”及其他几位海豹突击队队员的姓名都采用了化名。 凯文•莫勒（Kevin Maurer） 为美国特种作战部队做了9年报导工作，曾6次深入驻阿富汗特种部队。2006年在东非与特别行动小组随军一个月，还曾和美国军队一道在伊拉克及海地驻扎。他已出版了4本著作，其中多为特种作战行动的描述。

"[A] 21st-century response to Herman Melville's 'Bartleby, the Scrivener.'"―NPR "A revelation."―Time A young woman walks into an employment agency and requests a job that has the following traits: it is close to her home, and it requires no reading, no writing, and ideally, very little thinking. Her first gig--watching the hidden-camera feed of an author suspected of storing co...(展开全部)

In the decades following Quine, debates about existence have taken center stage in the metaphysics. But neo-Quinean ontology has reached a crisis point, given the endless proliferation of positions and lack of any clear idea of how to resolve debates. The most prominent challenge to mainstream ontological debates has come from the idea that disputants can be seen as using the q...(展开全部)

Perspective is easy; yet surprisingly few artists know the simple rules that make it so. Now they can remedy that situation with this step-by-step book, the first devoted entirely to clarifying the laws of perspective. Using over 250 simple line drawings, the author leads the reader through every i

Calculus Made Easy has long been the most popular calculus primer, and this major revision of the classic math text makes the subject at hand still more comprehensible to readers of all levels. With a new introduction, three new chapters, modernized language and methods throughout, and an appendix of challenging and enjoyable practice problems, Calculus Made Easy has been thoro...(展开全部)

Calculus Made Easy is the answer to anyone who has been baffled, frustrated and simply irritated by the traditional academic approach to applying differentiation and integration problems. First published over a century ago, the methods, "tricks of the trade" and shortcuts Silvanus Thompson reveals are as applicable today in solving real-world 21st century problems. Whether you ...(展开全部)

Amie Thomasson is Professor of Philosophy and Cooper Fellow in the Department of Philosophy at the University of Miami. She is the author of Ordinary Objects and Fiction and Metaphysics, and co-editor (with David W. Smith) of Phenomenology and Philosophy of Mind. In addition, she has published more than 50 book chapters and articles on topics in metaphysics, metaontology, ficti...(展开全部)

Six Easy Pieces: Essentials of Physics Explained by Its Most Brilliant Teacher is a publishing first. This set couples a book containing the six easiest chapters from Richard P. Feynman’s landmark work, Lectures on Physics specifically designed for the general, non-scientist readerwith the actual recordings of the late, great physicist delivering the lectures on which the cha...(展开全部)

In the decades following Quine, debates about existence have taken center stage in the metaphysics. But neo-Quinean ontology has reached a crisis point, given the endless proliferation of positions and lack of any clear idea of how to resolve debates. The most prominent challenge to mainstream ontological debates has come from the idea that disputants can be seen as using the q...(展开全部)