There are lots of places you can get it for free. For example, this site has it in a variety of formats and seems to well-rated: http://manybooks.net/titles/bunyanjoetext94plgrm11.html
If you enjoy reading out of copyright books (a good percentage of what I read at least), then Calibre is your friend if you have any kind of eBook reader. Check it out!
If you have access to YouTube search for The Bible Project. They do a good job explaining and illustrating the Bible.
If you don't have regular access to the Bible you can download an app for your phone or tablet here: https://play.google.com/store/apps/details?id=com.sirma.mobile.bible.android & you can read it in your language.
In 20th Century Theology Grenz and Olson suggest that you can track the transitions of cultural shifts by the tension between two views of God - his transcendence and his immanence.
Transcendence being the image of God the father, all powerful in heaven. Immanence being the view of God most associated with Jesus, a God who is close to us like a brother.
Both are true views, and need to be held in balance for a good view of God, if one is too heavily biased there will be theological problems.
The book explores the tension through history, particularly from the age of Enlightenment to a post modern age.
All of this came to mind when I read your post. Conservatism tends toward transcendence and Liberalism tends toward immanence.
I would guess it is because conservatives tend to look back to an age in history that favoured the transcendent view and liberals are more post modern and favour relational truths that lean towards immanence.
Either way, the book is an interesting read and may give you more insights.