Incremental backups are a data protection method that saves only the changes made since the last backup. This means that after an initial full backup, subsequent backups only capture new or modified files. This approach is efficient in terms of storage space and time, as it reduces the amount of data that needs to be backed up regularly. For example, if a user has a computer and performs a full backup on Monday, an incremental backup on Tuesday will only include files changed since Monday. If another backup occurs on Wednesday, it will only include changes made since Tuesday. This method allows for quicker recovery and less resource usage.