I love to share with you my recent find - an antique book "The Ladies' Guide to Elegant Lace Patterns, Etc." by Eva Marie Niles, published in 1884.
Whilst this book is technically out of print, it can be downloaded for free online. A large number of patterns from the book are also available for free online in an updated format for modern knitters.
Find it on Ravelry.
Just look at this beautiful lace stitch patterns!