We send out the PDF rewards immediately the Kickstarter ends.
a word is missing after "immediately", insert "after"
Bonds of Forced Faith(adventure, 32 pages, level 10).
need a space after "Faith"
not sure of your style guide on captions, but there's no period at the end of this sentence.
Since the earliest ages when the people of Risur founded this city, they feared the capricious beings that hid in those fog-shrouded peaks, but now as the march of progress and the demands of national defense turn Flint into a garden for artifice and technology, the old faiths and rituals that kept the lurkers of the woods at bay are being abandoned.
huge paragraph, might want to split at "peaks, but"
The skyseers – Risurs folk prophets since their homeland’s birth
"Risurs" should be possessive, needs apostrophe
This incredible adventure path contains 13 adventures, plus a player's guide and a campaign guide, coming to over 1,000 pages of critically-acclaimed content.
A little confusing upon first read. I initially read "coming to" to mean "being added" or something. Maybe change to a different word, such as "totalling"?
missing period at end of link text
100 years before the main adventure path begins, the players play King Lorcan Finn
"players play" is a little repetitive? Maybe "players take the roles of" or something?
This group of legendary characters must defeat a cover of witches
should be "coven" of witches
(re: the "The Books!" image)
The first text block (for Advanced Rules Miscellany) refers to "5th edition" that needs a capital "E" as in the other text blocks in that image.
The last text block (for Spells of the Ages) refers to "5E" instead of "5th Edition" as in the other text blocks.
Brexit may cause delays and additional fees on on shipments to the EU
"on on"