If you are interested in becoming a book conservator, you should start out by learning all you can about how books are made. Study the history of books and of binding. Purchase an inexpensive, hardcover book at a used bookstore and take it apart to see how the book block is sewn together and how it is connected to the cover. Then try to put the book back together. There are many "how to" bookbinding guides to help you. Check out Hand Bookbinding: A Manual of Instruction, by Aldren A. Watson (New York: Dover Publications, 1996); Making Handmade Books: 100+ Bindings, Structures & Forms, by Alisa Golden (Asheville, N.C.: Lark Crafts, 2011); The Care of Fine Books, by Jane Greenfield (New York: Skyhorse Publishing, 2007); and The Encyclopedia of Papermaking and Bookbinding, by Heidi Reimer-Epp and Mary Reimer (Philadelphia: Running Press Book Publishers, 2002) for the history of different styles of bookbinding and definitions of terms used in the field.

Contact the conservation or preservation department at your local library. The department may offer tours of its facilities or workshops on the proper care of books. Contact professional librarian associations; they may have divisions devoted to conservation. Community colleges and art museums often have weekend or evening classes in the conservation and book arts.

Finally, you might try contacting your local park district or community center to suggest sessions about book conservation. Many such groups offer summer day camps or after-school programs and look for input from participants about what types of activities are of interest. Plus, if you have had some conservation experience of your own, you could offer to teach younger students about how they can begin conserving books by taking good care of their own materials and the books they check out of the library.

Book conservators work to slow down or stabilize the deterioration of books and other print-based materials. They repair books that have been damaged by misuse, accident, pests, or normal wear and tear; treat items that may have been produced or repaired with inferior materials or methods; and work to ensure that the books will be around for the future.

Before beginning any conservation efforts, book conservators must examine the item to be restored, determine the extent and cause of the deterioration, evaluate their own conservation skills, and decide on a proper course of action. In deciding how to treat an item, the book conservator must first consider the history of the item. When was it made? Book conservators must have a good knowledge of the history of bookmaking in order to serve the needs of the item. A book bound by hand in Italy in 1600 will have different needs than a volume bound by machine in 1980.

The book conservator also needs to consider what other repairs have been made to the book over the years. Sometimes a shoddy repair job in the past can create more work for todays conservator. For example, someone 30 years ago may have taped a torn page to keep it from ripping out entirely. Unfortunately, this hasty action, coupled with tape that will not stand the test of time, could lead to cracked, yellowing tape and stained book pages. When repairing a ripped sheet, book conservators use a pH-neutral (acid-free) adhesive, such as wheat paste, and Japanese paper, or a special acid-free book tape. Since high levels of acidity in papers and materials increase the rate of deterioration, all materials that conservators use must be acid-free and of archival quality.

Book conservators also think about the current and future use of the book. For a common, high-use volume that will be checked out of the library frequently, they may repair the book with cheaper, lower quality materials that will survive being tossed into a backpack and repeated trips through the return chute. For a textbook that is reprinted each year, for example, a thick piece of tape may be an adequate conservation method. If such a book is falling out of its cover, the conservator may need to remove the book block entirely, repair or replace the end sheets and headbands, and reglue the book block back into the cover. If the cover of the book is broken, the conservator may need to fit the text block into a new cover. This involves measuring out the binders board and book cloth, cutting the materials to size, gluing the cloth onto the board, sizing in the book block, then finally gluing and setting the book. After the glue is dry, the conservator will inspect the item to ensure that all materials were fitted in properly, and that all problems were corrected.

Rare books that are handled less frequently or only by specially trained and careful users can have less invasive repairs in order to maintain the integrity of the original item. For instance, a conservator may choose to make a box to house a book rather than repair a broken spine. If the conservation work would lessen the value of the book, sometimes its better to simply stop the deterioration rather than to repair the damage.

The historical and monetary value of a book is a key factor in deciding upon treatment. As with any antique, often less restoration is more. On a recent antiques television program, an owner refinished an antique table and thereby reduced its resale value by thousands of dollars. The same can be said for books. Many old and rare books have great value because of the historical materials and methods in evidence.

Sometimes pests are encountered in conservation work. Beetle larvae and other insects may feast upon crumbs left in books, the pulp of the paper, or the adhesive, and make holes in the text. The conservator will assess the extent of the damage and prescribe a treatment. For critter damage to books, the most important thing is to ensure that any infestation is under control. The conservator needs to make sure that all bugs in a book are dead; if not, the items may need to be taken to a professional for fumigation. Once that is complete, the conservator can look at possible repair options. If the damage is under control, the conservator will probably opt for further damage prevention in lieu of repair.

Often conservators treat books for only part of their day. They might also spend much time working on ways to minimize the need for conservation and repair work in the first place. Book conservators who work as part of a large department have other duties, such as dealing with patrons, reference work, security, training assistants, fielding calls from the public, giving seminars, and teaching. Conservators may also serve on groups and committees devoted to preservation, conservation, and the administration of a conservation lab or department.