1z Library -
The 1Z Library has faced intense criticism from publishers, authors, and intellectual property rights advocates, who accuse the library of promoting piracy and copyright infringement. Many commercial publishers, such as Elsevier, Wiley, and Cambridge University Press, have expressed concerns that the library's actions undermine their business models and threaten the sustainability of academic publishing.
Note: Amazon has recently cracked down on sending files via email. It is often safer to download the EPUB and transfer it via USB or use the "Send to Kindle" app on your PC/Phone manually. 1z library