Each level has at least 36 weeks of lessons―enough to keep you busy for a full "school year." However, we strongly encourage you to take your time working through each unit and each level. We also encourage regular breaks as needed and to prevent burnout! As we will remind you often, you are the boss of your homeschool, so there is no need to rush through any of it. Following your child's lead will often take you down rabbit holes of learning through a variety of topics. Since each each level is created with a variety of ages and abilities in mind (with various upgrades and modifications built in), you will likely find you could stay within a single Level for more than one year. Additionally, Level 3 has 18 months of units designed with the idea that you can indulge your child's interest with lessons in this level for up to three years. In all, the Learn + Live Letter could be your curriculum of choice from start to finish for up to seven years, depending how you choose to use it.