This is a translation of the following title published by Cambridge University Press: A Student′s Guide to Entropy 9781107653979  Don S. Lemons 2013 The Simplified Chinese Translation for the People’s Republic of China (excluding Hong Kong, Macau and Taiwan) is published by arrangement with the Press Syndicate of the University of Cambridge, Cambridge, United Kingdom.  Cambridge University Press and China Machine Press 2022 The Simplified Chinese Translation authorized for sale in the China mainland (excluding Hong Kong, Macau and Taiwan) only. Unauthorised export of this translation is a violation of the Copyright Act. No part of this publication may be reproduced or distributed by any means, or stored in a database or retrieval system, without the prior written permission of Cambridge University Press and China Machine Press. 本书由Cambridge University Press授权机械工业出版社在中国大陆（不包括香港、澳门特别行政区及台湾地区）出版与发行。未经许可之出口，视为违反著作权法，将受法律之制裁。 Copies of this book sold without a Cambridge University Press sticker on the cover are unauthorized and illegal. 本书封面贴有Cambridge University Press防伪标签，无标签者不得销售。 北京市版权局著作权合同登记图字：01-2018-7055号。