Nonprofit · EIN 26-3397915
ANTIQUARIAN BOOK SCHOOL FOUNDATION
Tax-exempt · COLORADO SPGS, CO 80909
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $205,409 | $171,301 | $34,108 | $1,428,484 | $2,500 | $1,425,984 |
| December 31, 2024 | 990 | $190,850 | $175,948 | $14,902 | $1,273,390 | $455 | $1,272,935 |
| December 31, 2023 | 990 | $163,644 | $190,945 | -$27,301 | $1,158,573 | $521 | $1,158,052 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $93,100
- Program service revenue
- $76,240
- Investment income
- $35,552
- Net gain from sales of assets
- -$1,156
- Other revenue
- $517
Expenses
- Grants and similar amounts paid
- $9,590
- Compensation of officers, directors and key employees
- $22,000
- Other salaries and wages
- $18,376
- Salaries, compensation and benefits (total)
- $42,462
- Professional fundraising fees
- $0
- Accounting fees
- $2,366
- Occupancy
- $710
- Travel
- $33,519
- Program services (functional)
- $152,809
- Management and general (functional)
- $18,492
Balance sheet and other
- Total assets, start of year
- $1,273,390
- Total assets, end of year
- $1,428,484
- Total liabilities, end of year
- $2,500
- Net assets, end of year
- $1,425,984
- Publicly traded securities
- $1,343,616
- Net assets without donor restrictions
- $425,984
- Net assets with donor restrictions
- $1,000,000
- Gross receipts
- $346,849
- Employees
- 1
- Volunteers
- 13
- Year formed
- 2006
- State of legal domicile
- CO
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KATHLEEN LINDEMAN | EXECUTIVE DIRECTOR Officer | 3 | $8,000 |
| LORNE BAIR | PRESIDENT Trustee or director, Officer | 1 | $2,000 |
| GARRETT SCOTT | VICE PRESIDENT Trustee or director, Officer | 1 | $2,000 |
| REBECCA ROMNEY | TREASURER Trustee or director, Officer | 1 | $2,000 |
| HELENE GOLAY | BOARD MEMBER Trustee or director | 1 | $2,000 |
| MARIA LIN | BOARD MEMBER Trustee or director | 1 | $2,000 |
| HEATHER O'DONNELL | BOARD MEMBER Trustee or director | 1 | $2,000 |
| ROBERT RULON-MILLER | BOARD MEMBER Trustee or director | 1 | $2,000 |
| BARBARA HERITAGE | SECRETARY Trustee or director, Officer | 1 | $0 |
| DANIEL DESIMONE | BOARD MEMBER Trustee or director | 1 | $0 |
| MICHAEL LANG | BOARD MEMBER Trustee or director | 1 | $0 |
| KATHERINE REAGAN | BOARD MEMBER Trustee or director | 1 | $0 |
| BEVERLY ROGERS | BOARD MEMBER (AS OF 10/25) Trustee or director | 1 | $0 |
| JOHN THOMSON | BOARD MEMBER Trustee or director | 1 | $0 |
990 for the year ended December 31, 2024: 13 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KATHLEEN LINDEMAN | EXECUTIVE DIRECTOR Officer | 3 | $12,083 |
| LORNE BAIR | PRESIDENT Trustee or director, Officer | 1 | $2,000 |
| GARRETT SCOTT | VICE PRESIDENT Trustee or director, Officer | 1 | $2,000 |
| REBECCA ROMNEY | TREASURER Trustee or director, Officer | 1 | $2,000 |
| HELENE GOLAY | BOARD MEMBER Trustee or director | 1 | $2,000 |
| MARIA LIN | BOARD MEMBER Trustee or director | 1 | $2,000 |
| HEATHER O'DONNELL | BOARD MEMBER Trustee or director | 1 | $2,000 |
| ROBERT RULON-MILLER | BOARD MEMBER Trustee or director | 1 | $2,000 |
| BARBARA HERITAGE | SECRETARY Trustee or director, Officer | 1 | $0 |
| DANIEL DESIMONE | BOARD MEMBER Trustee or director | 1 | $0 |
| MICHAEL LANG | BOARD MEMBER Trustee or director | 1 | $0 |
| KATHERINE REAGAN | BOARD MEMBER Trustee or director | 1 | $0 |
| JOHN THOMSON | BOARD MEMBER Trustee or director | 1 | $0 |
990 for the year ended December 31, 2023: 13 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KATHY LINDEMAN | EXECUTIVE DIRECTOR Officer | 3 | $12,083 |
| LORNE BAIR | VICE PRESIDENT Trustee or director, Officer | 1 | $1,500 |
| ROBERT RULON-MILLER | PRESIDENT Trustee or director, Officer | 1 | $1,500 |
| GARRETT SCOTT | BOARD MEMBER Trustee or director | 1 | $1,500 |
| HEATHER O'DONNELL | BOARD MEMBER Trustee or director | 1 | $1,500 |
| BRIAN CASSIDY | BOARD MEMBER Trustee or director | 1 | $0 |
| DAN DESIMONE | TREASURER Trustee or director, Officer | 1 | $0 |
| KATHERINE REAGAN | BOARD MEMBER Trustee or director | 1 | $0 |
| JOHN THOMSON | BOARD MEMBER Trustee or director | 1 | $0 |
| LISA BASKIN | BOARD MEMBER Trustee or director | 1 | $0 |
| BARBARA HERITAGE | SECRETARY Trustee or director, Officer | 1 | $0 |
| MICHAEL LANG | BOARD MEMBER Trustee or director | 1 | $0 |
| CLINT FLUKER | BOARD MEMBER Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 1604 E YAMPA ST, COLORADO SPGS, CO 80909-3749
- In care of
- % ROBERT RULON-MILLER JR
- Principal officer (990 for 2025)
- KATHLEEN E LINDEMAN, 1604 EAST YAMPA ST, COLORADO SPRINGS, CO 809093749
- Signed the 990
- KATHLEEN E LINDEMAN, EXECUTIVE DIRECTOR
- Phone
- (719) 473-6634
- Website
- WWW.BOOKSEMINARS.COM
- Return prepared by
- CBIZ ADVISORS LLC
Mission
TO EDUCATE LIBRARIANS, COLLECTORS, AND ASPIRING BOOK SELLERS IN BEST PRACTICES FOR HANDLING AND SELLING BOOKS.
Program accomplishments
- THE SOLE PURPOSE OF THE ANTIQUARIAN BOOK SCHOOL FOUNDATION (ABSF) IS TO EDUCATE LIBRARIANS, COLLECTORS, AND ASPIRING BOOK SELLERS IN BEST PRACTICES FOR HANDLING AND SELLING BOOKS. WE PROVIDE AN ANNUAL WEEK-LONG SEMINAR WHERE LEADING SPECIALISTS SHARE THEIR KNOWLEDGE, SKILLS AND PROFESSIONAL EXPERIENCES WITH RARE BOOK AND SPECIAL COLLECTION LIBRARIANS FROM UNIVERSITY LIBRARIES, PUBLIC LIBRARIES, HISTORICAL SOCIETIES AND ""FRIEND"" GROUPS OF SUCH INSTITUTIONS AS WELL AS ASPIRING BOOKSELLERS AND COLLECTORS IN A COMPREHENSIVE SURVEY OF THE RARE BOOK MARKET, BOTH ANTIQUARIAN AND MODERN. (CONTINUED ON SCHEDULE O)BASIC PROCEDURES AND PROBLEMS ARE DISCUSSED BOTH FORMALLY AND INFORMALLY THROUGH A SERIES OF LECTURES, DISCUSSIONS, DEMONSTRATIONS AND PRACTICAL HANDS-ON WORKSHOPS WITH EMPHASIS ON CATALOGING, PRICING, RESTORATION AND MAINTENANCE, AND THE TOOLS AND MATERIALS OF BOOK PRODUCTION AS WELL AS BOOKSELLING IN THE ELECTRONIC AGE.THE ANTIQUARIAN BOOK SCHOOL FOUNDATION (ABSF) IS AN INDEPENDENT, NONPROFIT, AND TAX-EXEMPT EDUCATIONAL INSTITUTION FOCUSED ON PROMOTING, MAINTAINING, AND EXPANDING THE STANDARDS OF THE ANTIQUARIAN BOOK TRADE. CABS-MINNESOTA, WHICH IS ADMINISTERED BY THE ABSF, IS AN ANNUAL WEEK-LONG INTENSIVE SEMINAR FOR BOOKSELLERS, PROSPECTIVE BOOKSELLERS, AND OTHERS WITH AN INTEREST IN THE ANTIQUARIAN AND SECOND-HAND BOOK MARKET.THE ABSF CONTINUES THE ACTIVITIES OF THE FORMER BOOK SEMINARS, A FOR-PROFIT PARTNERSHIP WHICH OVER THE PAST 48 YEARS HAS EDUCATED MORE THAN 3,000 STUDENTS FROM THE UNITED STATES AND ABROAD. 55 STUDENTS ATTENDED THE 2025 CABS-MN SEMINAR AT ST. OLAF COLLEGE. CABS-MINNESOTA IS COMMITTED TO DIVERSITY IN THE ANTIQUARIAN AND RARE BOOK TRADE. WE BELIEVE THAT A DIVERSE AND INCLUSIVE TRADE WILL BENEFIT BOTH THE TRADE AND THE CULTURAL HERITAGE COMMUNITY AT LARGE BY EXPANDING PERSPECTIVES AND BY ENCOURAGING NEW COLLABORATIONS. WE RECOGNIZE THAT MANY TALENTED PROFESSIONALS IN CULTURAL HERITAGE PROFESSIONS DO NOT SEE THEMSELVES REFLECTED IN THE TRADE. AS ONE STEP TOWARD CENTERING NON-DOMINANT PERSPECTIVES, CABS-MINNESOTA HAS ESTABLISHED THE DIVERSE VOICES FELLOWSHIP TO BUILD A COHORT OF FELLOWS WHO HAVE A STRONG INTEREST IN LEARNING MORE ABOUT THE ANTIQUARIAN BOOK TRADE AND HAVE FOUND THEMSELVES ISOLATED IN OR DISTANCED FROM THE TRADE BY REASON OF RACE, GENDER, SEXUAL ORIENTATION, DISABILITIES, AND/OR INCOME.THE FELLOWSHIP OFFERS A PROGRAM OF PROFESSIONAL AND CAREER DEVELOPMENT DESIGNED AROUND FELLOWS' INTERESTS INCLUDING PARTICIPATION IN THE ANNUAL WEEK LONG SEMINAR AND AN ADDITIONAL FIELD STUDY. THE INITIAL GROUP OF FIVE FELLOWS FINISHED THE COURSE IN 2022. FOUR FELLOWS COMPLETED THE PROGRAM IN 2025.Expenses $152,809 · grants $9,590 · revenue $55,900
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 26-3397915
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2009
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B99)
- Assets (IRS master file)
- $1,428,484
- Income (IRS master file)
- $346,849
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $205,409 | $171,301 | $1,428,484 | XML |
| 990 | December 2024 | $190,850 | $175,948 | $1,273,390 | XML |
| 990 | December 2023 | $163,644 | $190,945 | $1,158,573 | XML |
| 990 | December 2022 | $114,273 | $191,317 | $1,089,667 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2019 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 26-3397915).
Questions about ANTIQUARIAN BOOK SCHOOL FOUNDATION
- What is the EIN of ANTIQUARIAN BOOK SCHOOL FOUNDATION?
- The employer identification number (EIN) of ANTIQUARIAN BOOK SCHOOL FOUNDATION is 26-3397915.
- Is ANTIQUARIAN BOOK SCHOOL FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2009.
- Are donations to ANTIQUARIAN BOOK SCHOOL FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does ANTIQUARIAN BOOK SCHOOL FOUNDATION file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of ANTIQUARIAN BOOK SCHOOL FOUNDATION due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did ANTIQUARIAN BOOK SCHOOL FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of ANTIQUARIAN BOOK SCHOOL FOUNDATION?
- The 990 for the year ended December 31, 2025 names KATHLEEN E LINDEMAN.
- Who are the officers and directors of ANTIQUARIAN BOOK SCHOOL FOUNDATION?
- The 990 for the year ended December 31, 2025 lists 14 people; 8 received compensation from the organization, the highest $8,000 (KATHLEEN LINDEMAN, EXECUTIVE DIRECTOR).
- How much revenue does ANTIQUARIAN BOOK SCHOOL FOUNDATION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $205,409, expenses of $171,301 and total assets of $1,428,484 at year end.
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