If you want to paint like the old masters, you're going to have to work like the old masters.
Juliette Aristides has written a book for any level painter who wants to improve their understanding of tone, forms, and color. If you could sum it up in one sentence, I suggest you turn to page 188. There, Juliette gives sound advice for any artist. "The best way to understand an artist's palette is through hands-on experience with it. Be bold in your experiments."
This instructional book is hardcover and printed on quality pages, suitable for real use in real studios. It has stood up to my abuse, smears, and "helpful" cats. It is intimidating in places, challenging, and made me a better artist. When you are ready for a serious challenging study of tonal underpainting, form, and values, I highly recommend Lessons in Classical Painting.
I received this book from Blogging for Books for this review.