Some people assume that novels and novellas are the same but actually, these are two different genres that people may like. One main difference is the type of story that you can read. The novel can be considered to be complex. There are some stories that you will read in novels that you have never come across in the past.
It would be a bit different with novellas. Novellas are going to be simpler. The stories that you will read will also be easier to understand. Another main difference between the two is their length. Novels are known to be very long. Some of them would take months to complete. Novellas are known to be shorter.