By adding content to or comments on this guide , you 're giving the editors , gina and adam , permission to include your additions on this site and in the upcoming pdf and softcover versions of the book , which will be licensed for reuse .
Bob hope : the road well-traveled ( softcover ) ( applause books )
鲍勃霍普:沿着这条路经常旅行(平装)(鼓掌书籍)
And the cost of producing the hardcover is more than the softcover .
精装书的制作成本又高于平装书。
But it wasn 't just the softcover format that was revolutionary : de graff was pricing his pocket books at a mere 25 cents .
但它并不只是平装样式,而是一个革命:德格拉夫定价他的口袋书仅25美分。
Book buyers have been used to hardback books being the most expensive , with softcover versions being priced much less , while e-book versions are cheaper still .