A fun presentation of all the key topics that most Excel users need: interface, tables, data validation, formulas and functions, pivot tables, data visualiza...

Anyone who is going to take on something more than a simple marathon needs clear advice on preparation. This book, written by a renowned ultramarathon runner...

A life hack is a useful tip that helps you quickly solve a problem. And a business hack is advice that makes a business person’s life easier. And there are m...

In this book you will find answers to questions related to energy management, maintaining health and amateur sports. How to replenish energy during the day? ...