“One” is a picture book written and illustrated by Kathryn Otoshi. The story is about Blue, Blue liked doing many things and sometimes jumping in puddles. Blue met red and red made fun of him and made blue feel bad about being blue. Purple, Yellow, Green and Orange comforter Blue but never in front of Red. Red grew every time he said something mean. Red picked on all of the colours and made them feel bad. On day 1 came along and made all of the colours laugh and happy. Red yelled “stop laughing!” but 1 stood up straight and said “no”. The other colours, Purple, Yellow, Green and Orange became numbers like 1. Blue wanted to be a number to but Red came up to him and said “Red is hot, blue is not”, Blue said “No” and became 6. Red became very small, then 1 went up to red and said “red can count too”. In the end red became 7. I think one of the theme of the story was friendship since all of the colours bonded together at the end and all became friends. Another theme I think I see in the story is change since all of the colours changed into numbers. I think that this picture book would be directed to kids really young around the age of preschool or kindergarten since the moral of the story seems like something very young kids should learn at their age. I would rate this book 3 out of 5.