One way to make a book cover for free is to use Microsoft Word on a home computer. This process involves finding appropriate stock images and adding text to a Word document.
To make a book cover in Microsoft Word, start by choosing a photo (from a free online source) that expresses the theme or title of the book. Save the photo to the computer, and then open a new blank document in MS Word. Click the Paper tab, and adjust the document size to 6 inches by 9 inches. Open the selected photo, and drag it onto the document. To move the picture, double click on it, and select Wrap Text and then Behind Text.
This allows you to move and re-size the image. Next, click Insert from the top menu, and click on the Shapes option. Choose the rectangle option, and use the shape fill tools to fill it with the desired color. Now, click Insert again, select Text Box, and then select Draw Text Box. Colors of the text box and text are changed with the top menu's color tools.
Type the desired text, and choose an easy-to-read font. Make any necessary adjustments before saving and printing.