My kids start to learning Chinese characters from a classic book<<画说汉字>>. As the bellow image, you can easily understand what this Chinese characters meaning, and why it must write in this way. Every Chinese character has a long history and specific meaning.
However, foreign learners don’t need to worry about this task. Actually you just need to learn 1000s usual characters, 30days is enough. If you have China friend, he will help you finish learning easily.