Prima Games is having a 50% off sale on their eguides today, and with code SAVE25, you can take another 25% off, bringing the Destiny 2 guide (to be released 9/6) to $3.75!
Nice guide to have on the first day of release!
https://shop.primagames
Note that you must use the desktop site to get the option to enter the discount code.
Thx to ZOZOT3 and DICTATUSNORDIC on Reddit for this find.