Book design for Amazon KDP: How to create an attractive cover and interior design

The design of a book is its face, which attracts the attention of potential readers. This is especially true for self-publishing on Amazon KDP, where competition is high.

Why is a book's design so important?
First Impression: The cover is the first thing a reader sees. It should be colourful, memorable and reflect the content of the book.
Positioning: The design helps define the genre of the book, the target audience and create a certain image of the author.
Sales: An attractive cover increases the likelihood that the book will be purchased.
Basic requirements for book design for Amazon KDP
Format: Amazon provides detailed technical requirements for file formats, image resolution, and other parameters.
Quality: Images should be of high quality to look good on different devices.
Genre Relevance: The cover design should match the genre of the book and its content.
Uniqueness: The cover should stand out from other books on the shelf.
Elements of cover design
Title: Should be clear, easy to read and reflect the content of the book.
Author: The author's name or pseudonym should be indicated.
Image: Can be a photo, illustration, or graphic element.
Font: Choose a font that matches the style of the book and is easy to read.
Colour scheme: Colours should harmonise with each other and create a certain mood.
Interior design of the book
Fonts: Choose fonts that are easy to read and do not tire the eyes.
Line spacing: Should be sufficient for comfortable reading.
Paragraphs: Paragraphs should be formatted in such a way that the text is easy to read.
Headings and subheadings: Should be bolded or otherwise labelled to make the text easier to navigate.
Illustrations: If the book has illustrations, they should be of high quality and appropriate to the style of the book.
How to design a book on your own or with the help of professionals?
On your own:
Graphic editors: Use programmes like Adobe Photoshop, Canva or free online services.
Templates: Look for ready-made cover templates and adapt them to your book.
Online designers: Take advantage of online designers that allow you to create a simple cover without much skill.
Professionals:
Designers: Contact a professional designer who will create a unique cover for your book.
Freelance Exchanges: Find a designer on platforms such as Upwork, Freelancer or Freelancehunt.
Tips for creating a successful book design
Research your competitors: Look at what covers other authors in your genre are using.
Make multiple variations: Create several variations of your cover and choose the best one. 
Ask for feedback: Ask friends, acquaintances, or beta readers to rate your cover.
Test different options: Experiment with different design elements to find the best fit.
It's important to remember that book design is as much a marketing tool as it is aesthetics. An attractive cover will help your book stand out from the competition and attract new readers.