'Philipok', illustrated by Gennady Spirin

'Philipok' - Филипок, 2011
by Leo Tolstoy
illustrated by Gennady Spirin 

All Philipok wants is to go to school - like his big brother, Peter! 
No, his mother says, he must stay home with Grandma. But little Philipok is 
determined. He slips out of the house, braving wintry winds and a fierce 
dog to surprise Peter, the other children, and the teacher as well

I found most of the illustrations here
Gennady Spirin's website is here