Before Steve Sheldon and Brenda Neuman-Sheldon moved into their new home, they knew where to buy the bags that fit the central vacuum and when the warranty for reglazing the bathtub would expire.

They knew when and where every appliance was purchased, thanks to notes on each manual. They knew how to reach the handyman and the electrician who’d previously worked on the Pikesville, Md., house. They knew that Monday was trash pickup day and how old the window treatments were.

That’s because the sellers prepared a fat green binder with that information for the couple when they bought the house a year and a half ago.

“It was one of the best gifts anybody ever gave me,” Neuman-Sheldon says.

“When we walked into this house, we knew where everything came from and where everything was,” she says. “When you move to an area, you don’t know whom to call.”

In contrast, Neuman-Sheldon says, when she and her husband sold their previous house, “we basically handed over our junk drawer.”

What the couple got at their new house is known informally as a house bible or house file, an organized source of house information. It helps homeowners with record-keeping and with getting ready to sell, and later assists new owners.

Previous owners Jeff and Debbie Waranch maintained a detailed house file. From that, Debbie Waranch says, she pulled the binder together for the buyers. Her file included names of reliable contractors, repair dates, service contracts and warranties.

House books that organized are uncommon, says real estate agent Suzie Tiplitz, of Coldwell Banker in Roland Park, Md.

Agents often encourage sellers to give buyers relevant house information at the time of the sale. It may be a pile of papers or a folder with strictly the basics of the house and appliance information. Or it can include everything from decorating details to neighborhood resources and takeout menus.

Being able to provide a potential buyer with useful information culled from a house file may give a seller an edge, several agents say. Potential buyers’ questions can be answered with documentation.

Many basics — new windows or a kitchen-remodeling date — are in a sales listing or provided at an open house or a showing. The records, plus a home inspection, come later.

“The buyer really wants to get one with the house first,” says Creig Northrop, who leads a Long & Foster team based in Clarksville, Md. “First, you’ve got to get the buyer interested.”

A plat, which shows the placement of what’s on the lot and the orientation of the house; a group of photos showing trees and shrubs in bloom; key features; and, if meaningful, something on the house’s history, also may be among basics, he says. The interested buyer, however, may want more information.

“Some people will do remodeling pictures, before and after,” Northrop says, which offers a behind-the-scenes peek for the curious. They also give homeowners a sense of being part of the history of the house, he says. They show such things as materials and workmanship that went into the job.