Books and retailers
All three ebooks are available on Amazon Kindle and in Barnes & Noble’s US store. Choose your guide and usual store below; prices and purchase eligibility vary by country and account.
Compare the three guidesAvailability by guide
The guides overlap; you do not need all three. Check the exact title, author, ebook format and current price at your chosen retailer.
Choose the Amazon store you normally use. Prices and purchase options depend on your country and Amazon account. These are English-language ebooks.
A focused place to begin
16 chapters · three reading levels
Amazon Kindle
View listing · US storeView listing · Canada storeView listing · UK storeView listing · Australia storeGoogle Play Books
Pending account review. No verified purchase link yet.
Barnes & Noble
View listing · US storeMore topics. More depth.
44 chapters · three reading levels
Amazon Kindle
View listing · US storeView listing · Canada storeView listing · UK storeView listing · Australia storeGoogle Play Books
Pending account review. No verified purchase link yet.
Barnes & Noble
View listing · US storeA short starting point
10 checks · a brief standalone resource
Amazon Kindle
View listing · US storeView listing · Canada storeView listing · UK storeView listing · Australia storeGoogle Play Books
Pending account review. No verified purchase link yet.
Barnes & Noble
View listing · US storeThis website does not take payments. Retailers show their current prices, taxes, payment options and country availability. A link for one market does not confirm every market.
No listing link means we have not verified it yet—not necessarily that the retailer has rejected the book. See the latest recorded release status.