A lesson level can refer to the first eight levels of Chip's Challenge 1, entitled Lesson 1 through Lesson 8, and seven levels in Chip's Challenge 2, entitled Lesson 1 through Lesson 7, though they are not the first seven levels. They serve as training levels for the rest of the game, and show most of the tiles. All of these levels contain a hint which explains the main concepts introduced in the level. They were all designed by Chuck Sommerville. They can also refer to the nine tutorial levels in CCLP1 or other similar levels in custom level sets