This is the site of Adam Weinberger Books, ABAA.  We have been dealers in rare and antiquarian books and manuscripts for more than 30 years and are based in NYC at 1050 2nd Ave Gallery 90 (@55th St) in the Manhattan Art & Antique Center.  We are also in the process of opening a new West Coast office in San Diego, Ca and are available in California by appt.  Adam Weinberger is a member of the ABAA (Antiquarian Booksellers’ Association of America) which requires members to adhere to ABAA’s Code of Ethics.  We work with a large number of important collectors worldwide, rare book libraries, and other institutions, and can offer you immediate and top payment for your rare books and entire libraries.   We travel nationwide for important and interesting material.  Feel free to click on our about link or contact us directly. We always try to respond within 24 hours, and for valuable books, will furnish you with actual rare book auction records so you can understand the basis of our evaluation.

We Buy Old and Rare Books

Our speciality is in old and rare books, specifically early printed books before 1800 including incunabula, early Bibles (pre-1800), manuscripts in general,  handwritten books, medieval manuscripts, books of hours, archives, natural history books, color plate books, books on travel and exploration and much more.  If you can provide quality photos of the book(s) binding and title page with date, we are often able to make offers based on those. Sometimes, books do need to be seen in person, and in that case we are happy to provide you with our company insured Fedex account for reverse charge (upon request)

We Offer 24 Hour Free Evaluations

Our evaluations are based on years of experience buying and selling rare books and manuscripts to many clients. We rely on common pricing resources such as the American Book Prices Database for auction records, German auction databases, and other essential rare book pricing reference tools and bibliographies. We believe in complete transparency and whether you wish to sell or not, are happy to provide actual comparable auction records so you can understand the basis of our evaluations.  We try to answer all enquiries within 24 hours.

We Buy Entire Libraries

We not only buy fine and important individual rare books and manuscripts , but also entire libraries, rare book collections, and archives.  We travel nationwide sourcing important material, offer immediate payment, and handle all packing and shipping arrangements.  Our size and facilities enable us to make en-bloc offers for quality collections.

Recent Blog Posts

Rare Book Repair

June 6, 2023

Repairing Old Books

Whether to repair or restore a rare book is a question I often think about as rare book dealer. I thought I would share some of my thought process on the subject.

October 10, 2022

How to find a medieval manuscript treasure

I will discuss in this video the subject of binder’s waste and how you can identify, date, and localize medieval manuscripts found in bookbindings. There are many treasures out there waiting to be discovered. If you have any medieval manuscripts or fragments, feel free to reach out.

December 22, 2021

What is My Old Book Worth? Rare Book Appraisal

If you are interested in learning the value of your rare books, I made a couple instructional videos that are on Youtube that explain what to look for as well as some rare book pricing databases. If you have any rare books you need me to look at or have specific …

November 23, 2021

Did this Rare Book Belong to Sir Issac Newton?

Here is a short video in which I examine a 1661 Euclid with very curious provenance.

November 9, 2021

Some Fun Rare Book Fakes

We do not have as many ‘fakes’ in the world of rare books as we encounter in other fields, but here are some issues with authenticity I have encountered with recent purchases.

April 28, 2021

Rare Book Auction.

Rare Book Auctions have been flooding the internet and sometimes overwhelming yours truly. I can only imagine how inundated a book collector feels given the deluge of listings. As part of my Youtube Series on what it is like to be a rare book dealer, here is what goes through …

April 4, 2021

The Ultimate Rare Book Appraisal. The Value of a Gutenberg Bible

Whether you own a leaf from Gutenberg from the sought after Noble Fragment or you just want to engage in biblio fantasy to know what the world’s most valuable printed book would fetch on the market if another copy ever came to light – well here is a fun video on the topic. …

September 25, 2020

Rare Book Provenance Deep Dive

I’ll look at a rare book on Renaissance cosmetics with provenance of the famous Royal Society. The video is about how rare book dealers look for copies of books with unique compelling stories to tell.

May 13, 2024

Wanted Books of Hours and Medieval Manuscripts

As an ABAA dealer specializing in rare books and manuscripts, I am constantly on the lookout for quality examples of medieval manuscripts, illuminated manuscripts, and Books of Hours. These historical treasures offer a unique glimpse into the art, culture, and religious practices of the Middle Ages. Medieval manuscripts are handwritten documents, often adorned with …

May 7, 2024

First Edition Book of Mormon : Astonishing Rise in Value


As an ABAA rare book dealer with a passion for historical treasures, I’m actively seeking early pre-1850 editions of the Book of Mormon and other Mormon-related and early Utah and Salt Lake City materials. Please contact me at or text photos to 646-469-1851. Let’s …

May 7, 2024

Seeking to Buy: 18th Century American Newspapers and Historical Paper

As an ABAA rare book dealer, I have a great interest in American historical paper. I’m especially looking to acquire 18th-century American newspapers for clients and Institutions. Below is a list of some of this publications. If you have any of these newspapers from the 18th century …