For young writers

... and older writers

The ability to write good sentences and paragraphs has never been more required by employers. Learning the essentials of writing compound and complex sentences is not complicated and can be learned within several hours. Young and older writers learn more readily with graphical eBooks.

The practice:

Study the concept from a variety of ways in the component eBooks.

Imitate the model sentences and paragraphs in the exercise components.

Then, use the methods in "real life" assignments in which you will write sentences and paragraphs more creatively according to your own ideas and abilities.