American Computer Science League (ACSL) is one of the most popular competitions in USA. The competition is divided into 4 contests. This book gives an edge of preparation for the first two contests. Also available ACSL - Junior/Class Room Divisions - Book 1-Vol-2 with more questions to practice for Contest 1 and 2. Coming up ACSL - Junior/Class Room Divisions - Book 2-Vol-1 and ACSL - Junior/Class Room Divisions - Book 2-Vol-2 gives an edge of preparation for Test 3 and 4