Some of the best books for entrepreneurs include 'Confessions of an Advertising Man' by David Ogilvy, 'The Design Of Everyday Things' by Don Norman, and 'The Brand Gap: How to Bridge the Distance Between Business Strategy and Design' by Marty Neumeier. Each of these books provides invaluable insights into different facets of business, from advertising and product design to brand strategy.

'Confessions of an Advertising Man' is written by David Ogilvy, who is often regarded as the 'father of advertising.' This seminal book covers not only advertising but also people management, corporate ethics, and office politics. It offers pioneering ideas and inspirational philosophy that are essential for good practice in business. The book became an international bestseller and is considered a bible for the advertising industry.

'The Design Of Everyday Things' by Don Norman highlights the importance of user-centered design. Entrepreneurs can learn how to create products that are both functional and user-friendly by making things visible, exploiting natural relationships between function and control, and using intelligent constraints. This book is a powerful primer on why certain products succeed in satisfying customers while others fail.

'The Brand Gap: How to Bridge the Distance Between Business Strategy and Design' by Marty Neumeier is the first book to present a unified theory of brand-building. It explains how strategic and creative thinking can unite to produce a 'charismatic brand' that customers feel is essential. The book covers the new definition of brand, the five essential disciplines of brand-building, and the importance of managing brands from the inside, among other key topics.