Good question! Baron Fig books are focused on providing great tools for idea generation. We wanted a strong balance between thick paper and a book that has a lot of pages. Since we wanted 192 pages in a lightweight book, we chose to go with off white 65# paper, which allows us to keep the book full and light. Dry mediums work fantastic, pens are great too, fountain pens may show through. If we used thick paper then we'd only come out around 120 page for the book—that's 72 less than we have now! We decided to put more pages in the books and, for those that use very wet mediums, just skip a page if the need arises.
Keep in mind that we are not making books for finished artwork. There are many brands out there that already supply books for such endeavors. We're making a book for ideas. One that's not just for illustrators, but for all thinkers—designers, writers, entrepreneurs, developers, musicians, choreographers, and so on. We've made a tool that you can let your mind run free in via notes, sketches, diagrams, etc.
Note: Baron Fig books are a constant work in progress, especially for our Kickstarter backers who are starting this journey with us. Once everyone receives their books you'll all have the opportunity to provide comprehensive feedback via our website. We want to make the best books possible, and that happens by listening to the community!