Original Flow English lessons contain Baseball Pig and Starving Bug. It's the second part of lessons. Christopher recommends to use them after Original lessons, but in reality they are the same level, so you may learn them in any order. You speak English, without hard work, without trying. Use our Advanced Lessons only after you have worked through our Original Flow English Lessons. These Advanced Lessons build on the learning and foundation you gained from our Original Lessons. Use Flow English: Advanced to take your English to the next level with new stories, vocabulary, idioms, grammar, and speed… You do this 1 hour every day and you speak English easily, and fast. You use the lessons and you feel strong and relaxed when you speak English.The Flow English: Advanced Lesson Set has 20 sets of our powerful, science-based lessons. That’s Vocabulary and Grammar lessons, our proprietary Listen & Answer Mini-Story lessons, Commentaries, and free bonus lessons from Flow English: Interviews and Foto English.