The author would love you to buy her books at her own online store.
Bying her books directly from her ensures that all proceeds go to her, the creator and absolute crafter of all the work. Credit cards are accepted through PayPal. No account is necessary. You have a choice of file format: Mobi, Epub, and PDF.
You can also find her books at most online stores, such as Amazon, iBooks (Apple), Barnes & Noble (Nook), KOBO, and many more. They are not sold on Google Books. If you find them there, they are illegally published without the author’s permission.