Q: Can you tell me about this book? The Pilgrim’s Progress
  Picked it up for a friend because it looked interesting.

A: Your book is from the Young People’s Library-Format 4. It was published between 1923 and 1933.

See Henry Altemus Company – Young People’s Library Series 202 for exact dating information.

The dust jacket matches the book. This title was also seen with a variant applique on the cover. (Shown below)