This book aims to take beginner and intermediate programming hobbyists to the next level by challenging them with exciting bite-size projects rooted in actual scientific and engineering problems. Each chapter introduces a set of simple techniques and shows a variety of situations where they can be applied. The main feature of the book is the choice of topics that are designed to be both entertaining and serious. Most of the projects strive to analyze or simulate something found in the real world, covering molecules and planets, plants and animals, bacteria and robots. Engaging in these excursions is a great way to hone coding skills while exploring diverse areas of human knowledge. The variety of discussed subjects and creative project ideas make the book a perfect choice for aspiring coders thinking where to apply their growing skills.