Tree House Press Inc. Author Team Leaders

David Booth

For over 40 years, David Booth has been involved in education as a classroom teacher, language arts consultant, professor, speaker, and author. A popular international speaker, David Booth has presented at hundreds of conferences on all areas of language learning. He has won numerous awards for his contributions to the teaching of reading and for his books for young people. David has hundreds of titles in print including several word study books for Tree House Press.


Jack Booth

Jack Booth has worked in education as a teacher, language arts consultant, and author. The titles in the series of books he has developed number in the hundreds. As well as books for the students, Jack has authored dozens of manuals and evaluation/assessment guides for use by teachers and parents. He has presented keynote speeches, conducted seminars, and taught courses throughout Canada, the U.S., and China. In addition to writing many Tree House Press publications, he also serves as Chief Editor for Tree House Press.


Julian D'Angela

Julian graduated in 1968 from McMaster University with a BSc in Mathematics and in 1975 from Niagara University with a Master of Science in Education. In 1976 he received Honour Specialist Certification in Mathematics. In his career, he has actively assisted students and teachers to strive for excellence through a variety of roles: Elementary Math Resource Teacher, Secondary Math/Science/Computer Teacher, Chairman of Pure and Applied Sciences, Mathematics Department Head, Secondary Vice-Principal, and Computer Consultant for the Hamilton Wentworth Catholic District School Board. For more than 30 years he has been a Math author of textbooks and workbooks, a designer of Math resource materials, and a workshop and conference presenter. Julian has a particular interest in recreational mathematics because of its ability to highlight the joy and beauty in Mathematics and highly motivate all students to discover and explore the math that exists all around them. The TREE HOUSE MATH PROGRAM is his latest collaborative project. This serie contains many unique elements to both support the struggling student and challenge the inquiring student. These elements include incorporating the use of many manipulatives, a welcoming and colourful visual layout, concrete and practical problems, math talks, home connections and EQAO-style assessments. It also provides an opportunity for students to organize their work maintaining a record that they can share with classmates and their parents and use as a reference later. Providing students with opportunities to experience AHA! moments in mathematics will help them develop their confidence in mathematics leading to greater success both in school and outside.


Josephine Lashmar

Josephine Lashmar is a graduate of McMaster University and Hamilton Teachers College. She taught for 33 years retiring in 2000 to turn her attention to publishing. For over 27 years Josephine Lashmar has been involved in Special Education as a Resource Teacher, a Special Language Class Teacher, and in a central office consulting position in assessment and remediation. She has taught Special Education Courses and conducted many workshops and seminars. Other educational involvements include membership in The Council for Exceptional Children sitting as past president of the local chapter of CEC as well as serving on the provincial executive of CEC. She has also been a marker of EQAO grade 3 writing assessment. She was a contributor to the Gage Cornerstones Reading Program, and has written and edited numerous titles for Tree House Press.


Patrick Lashmar

Patrick Lashmar graduated with a Masters of Education degree from The University of Toronto in 1977. For 28 years, Patrick served as the Language Arts/Literacy Consultant coordinating literacy programs for 57 elementary and secondary schools. Being in curriculum for such an extended period offered him the opportunity to contribute to numerous Ontario Ministry of Education documents and projects. At the EQAO, he was given the opportunity to select Provincial Anchor Papers, train and manage markers and in-service principals and teachers across Ontario. He enjoyed leadership roles in numerous professional organizations including being President of the English Coordinators and Consultants of Ontario (ECCO) now known as ELAN, as well as a provincial conference chair for The Ontario Council for the Teaching of English.
Authoring educational textbooks was his passion; having coauthored 24 texts and 17 teachers’ guides between the years 1983-2000, many with David Booth, for companies such as Nelson, Gage and Global Modern Curriculum Press (now owned by Pearson) and American publisher Modern Curriculum Press.
After retiring from his school board it seemed natural to continue his publishing career on a full-time basis as CEO, publisher, and president of Tree House Press Inc.
Patrick is also a Tree House Press author, having written or contributed to over 75 Tree House Press publications. In total he has sold over 2.5 million copies of his publications.

Joanna Lawson

Joanna Lawson lives in Ancaster, Ontario. She taught most elementary grades, and special education. She was a consultant, principal, professor and conducted workshops throughout Ontario. Two of her four books of poetry won the yearly Award from Arts Hamilton. The Tower Poetry Society and Second Wind Recorder group claim her free time.She has authored many reading and literature books for Tree House Press.

Paul Lessard

Paul Lessard has a M.Ed in curriculum development from O.I.S.E.He has participated in the “Teaching and Learning of Mathematics” for more than four decades, through a variety of roles as an elementary teacher, elementary math consultant, math author, designer of math materials, father and grandfather. Some of his unique insights about “The Teaching and Learning of Mathematics” came to him as he watched his own children (and now their kids) grow up mathematically. His children's never ending adventures with the beauty and power of mathematics is something that he watched them encounter and benefit from almost accidentally, each and every day! Paul has coauthored more than 30 elementary math books, a photo math collection for primary and concrete hands-on math posters for grades 1 through 8. All of the materials he has produced focus on highly visual math that is easy to read for kids, their parents and their teachers. The Tree House Press Math Program highlights this focus by its design, colourful visual layout, math talks, home connections, and modeled sample EQAO-like assessments. Professionally, Paul is a former President of OAME (Ontario Association for Mathematics Education), lifetime member of the Ontario Mathematics Coordinators Association, co-writer of the 1997 EQAO Grade 3 Math assessment , lead marker for the EQAO math marking and Summer Institute Leader for the Ontario Ministry of Education leveling math papers. Paul has given math talks extensively across Canada. His primary goal in all of his math endeavours is to “help kids learn to love math so they will love to learn math.